Slack vs Teams vs Discord
Slack
Enterprise messaging platform with advanced search and extensive integrations for team collaboration.
Mid-to-large enterprises, tech companies, and organizations prioritizing message searchability and workflow automation
Microsoft Teams
Unified communications platform integrated with Microsoft 365, combining chat, calls, and meetings.
Organizations already using Microsoft 365, enterprises requiring advanced compliance, and companies needing integrated calling and conferencing
Discord
Community-focused VoIP and text chat platform optimized for servers and group collaboration.
Gaming communities, creative groups, open-source projects, and organizations prioritizing community engagement and voice communication over formal compliance
Quick Answer
Slack dominates enterprise messaging with superior search and integrations, Teams excels as an all-in-one Microsoft ecosystem solution with built-in Office integration, while Discord leads in community engagement and voice quality for gaming and creative groups. Each serves distinct use cases: enterprise collaboration, corporate unified communications, and community-driven platforms respectively.
Full Comparison
| Attribute | Slack | Microsoft Teams | Discord |
|---|---|---|---|
| App Integrations(count) | 2,600+(winner) | ~700 | — |
| Third-Party App Integrations(count) | 2,400+(winner) | 1,000+ | — |
| Video Meeting Capacity(participants) | Up to 2,000 (with paid plan) | Up to 10,000(winner) | — |
| Native Office Integration | Limited (third-party connectors) | Native with SharePoint, OneDrive, Office Web Apps | — |
| AI Copilot Features | Slack AI (summarization, search, assisted writing) | Microsoft Copilot Pro (enterprise AI, meeting insights) | — |
| Message History Retention on Free Plan(count) | 10,000 most recent | — | — |
| Free Tier Meeting Participant Limit(participants) | Unlimited (Slack Huddles for video limited to 50 participants) | — | — |
| Native Video Conferencing | Huddles for brief video, limited to 50 participants; requires external tool for full conferencing | — | — |
| Meeting Recording & Auto-Transcription | Not native; requires integration with Otter.ai or similar third-party services | — | — |
| Asynchronous Communication Strength(scale 1-5) | 5 out of 5 (core feature with channels, threads, and history) | — | — |
| Third-Party Integrations Available(count) | 2,000+ | — | — |
| Enterprise AI Features | Advanced AI assistant, smart summaries, automation | — | — |
| Free Plan Message History(days) | 90 days | — | — |
| Free Message History(days) | 90 days maximum | Unlimited | — |
| Free Plan Message History Retention(days) | 90 days | — | — |
| Free Plan External Guest Collaboration(capacity) | Unlimited external guests via workspace invite | — | — |
| Email Service Included | No | — | — |
| Message History Searchable(years) | 10 years standard | — | — |
| Workflow Automation Steps(built-in steps) | 50+ | — | — |
| Message History on Free Plan(days) | 90-day limited access | — | — |
| Message History Retention(status) | 10,000 messages (free); unlimited (paid) | — | — |
| Built-in Project Management(status) | No (requires integrations) | — | — |
| Max Video Conference Participants(people) | 1000 | 10000 | 50 |
| Video Conference Max Participants(participants) | 150 | 300(winner) | — |
| Message Search History (Free Tier)(days) | 90 days | 90 days | — |
| Message Search Speed (Free Tier)(indexing scope) | All messages indexed instantly | Last 3 months only | — |
| Message History Retention (Free Tier)(days) | 90 days | Unlimited | — |
| Video Meeting Participant Limit(participants) | 2000(winner) | 300 | — |
| Self-Hosting Capability | Not available | — | — |
| Cloud Storage Included Per User(GB) | 0 GB (integrations only) | — | — |
| Maximum Video Conference Participants (Standard Plan)(participants) | 2 | — | — |
| Message History Search (Self-Hosted)(messages) | 10,000 (free), unlimited (paid) | — | — |
| File Storage (Free Plan)(GB) | 5GB | — | — |
| Free Plan App Integrations(apps) | 10 maximum | — | — |
| Max Group Video Call Participants(users) | 3 (free tier) | 10,000 | Unlimited |
| Voice Call Audio Quality Score(1-10 scale) | 7.5 | 8.0 | 9.5 |
| Offline Message Functionality(yes/no) | Limited | Full | Limited |
| Maximum Free Tier Group Meeting Duration(hours) | 24 hours | — | — |
| AI Meeting Notes Availability | Premium only ($10/user/month) | — | — |
| AI Meeting Summaries | Basic transcription only | — | — |
| Free Meeting Duration (3+ participants)(minutes) | 60 minutes | — | — |
| Real-Time Translation Languages(count) | 31 languages | — | — |
| Maximum Video Meeting Participants(participants) | 300+ participants(winner) | 25 participants | — |
| Language Translation Support(languages) | 40+ languages (Teams Premium)(winner) | 0 (no native support) | — |
| Maximum Video Conference Participants(participants) | 10,000 participants | — | — |
| Supported Language Captions(languages) | 60+ languages(winner) | 15 languages | — |
| Breakout Rooms Maximum Count(rooms) | 50 breakout rooms | — | — |
| Screen Sharing Participants(simultaneous users) | 1 primary | — | — |
| Chat Message Retention (Free Tier)(months) | 36+ months | — | — |
| Free Tier Message History(messages) | 10,000 most recent | Unlimited | — |
| Video Participants (Free Tier)(maximum simultaneous) | 100 video participants(winner) | 8 video participants | — |
| Video Conference Participant Limit(participants) | 300 participants | — | — |
| Video Meeting Notes with AI | No | — | — |
| Group Video Call Duration Limit (Free)(minutes) | 1440 (24 hours) | — | — |
| Real-Time Translation Support(Languages) | Limited, experimental | — | — |
| Message History Retention(text) | Permanent (searchable) | — | — |
| AI Assistant Capabilities(text) | Basic moderation bots | — | — |
| Max File Upload Size(MB) | 100 MB | — | — |
| Voice Channel Participant Limit(users) | Unlimited | — | — |
| Screen Share Quality(fps @ resolution) | 1080p @ 60fps | — | — |
| Maximum Voice Call Participants(users) | 50 participants | — | — |
| Content Retention Period (Free)(days) | 30 days | — | — |
| Maximum Free Storage Per Upload(MB) | 100 MB | — | — |
| Native Meeting Recording | No (bot-dependent) | — | — |
| Persistent Message History | Yes (unlimited) | — | — |
| Free Tier File Upload Size Limit(MB) | 8 MB per file | — | — |
| Message History Search | Full history searchable | — | — |
| Paid Starting Price(USD/user/mo) | $7.25(winner) | Included with M365 | — |
| Standalone Monthly Pricing (Pro Tier)(USD per user per month) | $7.25 | $6.00 (with Microsoft 365 Business Basic)(winner) | — |
| Annual Cost per User (Pro Tier)(USD) | $87 (billed yearly) | $72 (bundled pricing)(winner) | — |
| Monthly Cost per 20-Person Team(USD) | $3,600 (Pro plan at $15/user) | — | — |
| Base Monthly Cost Per User(USD) | $8.25 (Pro plan, min 3 users)(winner) | $6-12 | — |
| Base Monthly Cost Per User(USD) | $7.25 | — | — |
| Business+ Tier Monthly Cost Per User(USD) | $12.50 | — | — |
| Price Stability (2024-2026)(months) | No increases for 33 months | — | — |
| Free Tier Cost(USD) | Free | Completely free | — |
| Pro/Standard Monthly Cost(USD per user/month) | $7.25 | — | — |
| Minimum Monthly Cost Per User(USD) | $7.25 | — | — |
| Years Price Stable (2026)(months) | 33+ months | — | — |
| Pro Plan Annual Cost(USD) | $150 (billed monthly) | $70/year (via Microsoft 365 Business Basic)(winner) | — |
| Pro Plan Monthly Cost (Annual Billing)(USD per user) | $8.75 | — | — |
| Monthly Cost (Pro Plan)(USD) | $12.50 per user/month | $15 (Essentials) / $20 (Standard) | $9.99 per server/month |
| Enterprise Plan Monthly Cost Per User(USD) | $12.50 | — | — |
| Paid Plan Starting Price(USD/month) | $7.25 | $6 | Free (Nitro $9.99/year) |
| Monthly Cost Per User(USD) | $8-12.50 (Pro/Business+) | — | — |
| Monthly Cost (Pro Plan, 50 users)(USD) | $412.50/month | — | — |
| Monthly Cost (10 Users, Annual)(USD) | $150/month ($1,800/year) | — | — |
| Price Per User Per Month (Pro/Standard)(USD) | $12.50/user (Pro plan) | — | — |
| Base Monthly Cost (10-person team)(USD) | $80-150 | — | — |
| Cost for 50-person team(USD/month) | $400-750 | — | — |
| Pro Plan Monthly Cost(USD/month per user) | $8.75 | $6.99(winner) | — |
| Annual Subscription Cost (Pro, 100 users)(USD) | $10,500 | $7,800 or free with Microsoft 365(winner) | — |
| Monthly Subscription Cost (Pro Plan)(USD) | $12.50 | — | — |
| Team Size Cost Efficiency Threshold(team members) | Cost-effective until ~12 users | — | — |
| Monthly Subscription Cost (Pro/Standard)(USD) | $8.25 | $0 (bundled) or $12.50 (standalone)(winner) | — |
| Pro Plan Monthly Cost per User(USD) | $12.50 | $6.00(winner) | — |
| Cost Per User (Annual, Lowest Paid Tier)(USD/month) | $8/month | — | — |
| Monthly Cost Per User (Standard Tier, Annual Billing)(USD) | $7.25 | — | — |
| Base Cost Per User/Month(USD) | $8.99 | — | — |
| Monthly Cost Per User (Standard)(USD) | $8-15 | — | — |
| Base Monthly Pricing (Annual Billed)(USD per user) | $8 | — | — |
| Pro/Standard Plan Cost per User/Month(USD) | $12.50/user/month | — | — |
| Monthly Cost Per User (Pro Plan)(USD) | $8.75 | $6.00 (or free with M365) | Free (Nitro $9.99 optional) |
| Starting Paid Plan Cost(USD/month) | $6/month (Microsoft 365 bundle) | — | — |
| Free Plan Monthly Cost(USD) | $6 (Teams Essentials) | — | — |
| Starting Monthly Price per User(USD) | $4.50 | — | — |
| Base Pricing (Monthly)(USD) | $7.00 (Business Basic 2026 price) | Free (with Nitro at $9.99)(winner) | — |
| Starting Price (Monthly)(USD) | $0 (Free) or $6 (Standard) | — | — |
| Free Tier Call Duration Limit(minutes) | 60 minutes (100 participants max) | Unlimited | — |
| Monthly Cost (1 Pro User)(USD) | $6.00 | $0 (free tier)(winner) | — |
| Base Monthly Cost (Single User)(USD) | $4.00 (Teams Essentials) - $12.50 (Teams Premium) | — | — |
| Free Tier Monthly Cost(USD) | $0 (limited) | — | — |
| Workspace/Server Creation Cost(USD per month) | Free Teams ($5-12/month for Pro) | Free (unlimited) | — |
| Paid Plan Cost (Single User/Month)(USD) | Discord Nitro $9.99-99.99/year | — | — |
| Cost for Personal Use(USD/month) | Free (with Nitro at $9.99/mo optional) | — | — |
| Monthly Cost (Basic Premium)(USD) | $9.99 | — | — |
| Premium Subscription Cost(USD/month) | $9.99 (Discord Nitro) | — | — |
| Message Search Speed(seconds) | Excellent - optimized search indexing | 2-4 seconds average | 0.1-0.3 seconds |
| Voice Audio Codec Quality(kHz) | 16 kHz | 48 kHz(winner) | — |
| Maximum Video Call Participants(people) | 15 participants | 50+ participants(winner) | — |
| Real-time Messaging Speed(ms (message delivery latency)) | 50-100ms (instant) | — | — |
| Time to Deploy(seconds (average)) | 3-7 | 1-3 | 1 |
| Desktop App Memory Usage(MB) | 280 MB(winner) | 450 MB | — |
| Message Search Response Time(seconds) | 2-4 seconds | — | — |
| Message Delivery Latency(milliseconds) | <100ms(winner) | 200-300ms | — |
| Minimum Bandwidth for HD Video(Mbps) | 4.5 Mbps | — | — |
| Voice Latency(milliseconds) | 80-120ms | 50-80ms(winner) | — |
| Screen Sharing Maximum FPS(fps) | 30fps | 60fps(winner) | — |
| Video Quality (Standard)(resolution & fps) | 1080p @ 30fps | — | — |
| 4K Video Quality Support(fps) | 4K @ 30fps (Premium only) | — | — |
| Voice Latency (Lower is Better)(milliseconds) | 50-80ms | 20-30ms(winner) | — |
| Audio Latency(milliseconds) | 50-100ms with spatial audio | — | — |
| Mobile App Size (iOS)(MB) | ~150 MB | — | — |
| Voice Chat Bitrate(kbps) | 128 kbps optimized | — | — |
| Average Voice Latency(milliseconds) | Under 100ms optimized | — | — |
| Mobile App File Size(MB) | 90-120 MB | — | — |
| Mobile App Feature Parity | 95% | 85% | — |
| Browser Join Without App | Often requires app/account | — | — |
| Auto-Generated Meeting Transcripts | Available (free in 43 languages) | — | — |
| Real-Time Caption Languages Supported(languages) | 60+ languages | — | — |
| Real-Time Auto-Transcription Languages(languages) | Speech-to-text via integrations only | — | — |
| Global Market Share(%) | 65% | — | — |
| Enterprise Deployment Adoption (500+ seat orgs)(percentage) | 67% of deployments | — | — |
| Global Enterprise Video Conferencing Market Share (2024)(percent) | 28.2% | — | — |
| Free Trial Duration(days) | 7 days | — | — |
| Learning Curve(difficulty rating) | 2 | 5 | 1.5 |
| Message Search Quality Score(1-10 scale) | 9.5 | 6.0 | 2.0 |
| User Learning Curve(difficulty rating) | Steep (enterprise-focused interface) | Minimal (intuitive design) | — |
| Setup Time for New Users(hours) | 8-10 (account creation + installation) | — | — |
| Daily Active Users Worldwide(millions) | 20+ million | — | — |
| Self-Hosting Available | No | — | — |
| Self-Hosted/On-Premises Option | No (cloud-only) | — | — |
| Time to Operational Team Setup(hours) | Less than 1 hour | — | — |
| Open Source Availability | Proprietary closed-source | — | — |
| Self-Hosted Deployment Option | Cloud-only SaaS | — | — |
| On-Premise Deployment Support | Not available | — | — |
| Self-Hosting Option | No | — | — |
| Self-Hosting Support | Not supported; Discord-only infrastructure | — | — |
| Google Workspace Integration Level | 2 out of 5 (available via integration, not native) | — | — |
| AI Features Count (2026)(features) | 30+ (CRM tools, meeting summaries, automation, SlackBot enhancements) | — | — |
| Available Integrations(integrations) | 2000+ | — | — |
| Third-Party Integrations Available(count) | 2,000+ | 500+ | 150+ |
| Third-Party App Integrations Available(apps) | 2,300+ | — | — |
| Native Integrations(count) | 2,000+ | — | — |
| Available Integrations(count) | 2,000+(winner) | 1,000+ native integrations | — |
| Third-Party Integrations (Native)(count) | 1000+ via Microsoft AppSource | — | — |
| Deployment Options | Cloud-based SaaS only | — | — |
| Deployment Options | Cloud-only SaaS | Cloud-only (SaaS) | — |
| GDPR & Data Sovereignty Compliance | Compliant but data on Salesforce servers | — | — |
| End-to-End Encryption Available | DMs only, Enterprise+ plan | — | — |
| FedRAMP Authorization(yes/no) | No | — | — |
| End-to-End Encryption Default(null) | Not available | — | — |
| End-to-End Encryption | Partial (DMs only, beta feature) | Not enabled by default (optional for 1-on-1 only) | — |
| Enterprise Security Certifications(count) | SOC 2, HIPAA, FedRAMP | SOC 2, FedRAMP, ISO 27001, HIPAA | SOC 2 only |
| Enterprise Security Compliance(certifications) | ISO 27001, SOC 2, HIPAA, GDPR | SOC 2, GDPR (limited enterprise focus) | — |
| Security Certifications(count) | 8 (SOC 2, FedRAMP, HIPAA, ISO 27001) | — | — |
| HIPAA Compliance Certification(yes/no) | Certified | Not certified | — |
| SOC 2 Type II Compliance | Yes (SOC 2, HIPAA, FedRAMP) | Yes | — |
| End-to-End Encryption Launch Year(year) | 2021 | — | — |
| SOC 2 Compliance(text) | Yes, SOC 2 Type II | — | — |
| Default End-to-End Encryption | No (opt-in only) | — | — |
| Default Encryption Type | Server-side only (E2E requires manual enable) | — | — |
| Maximum Meeting Participants(participants) | Unlimited group chats | Up to 50 (voice channel) | — |
| Built-in Task Management(features) | No: messaging-only, requires integrations | — | — |
| Message History Searchability(months) | 90 days (Free/Pro), unlimited with Enterprise | — | — |
| Third-party Integrations(integrations) | 2000+ | — | — |
| Native Integrations Available(integrations) | 2200+(winner) | 1000+ | — |
| Third-Party Integrations(integrations) | 2,000+ | 500+ | 400+ |
| Pre-built Integrations(count) | 2,400+ integrations | — | — |
| Native Third-Party Integrations(count) | 100+ | 500+ apps(winner) | — |
| Native Microsoft 365 Integration | API-based (basic) | Native (deep) | — |
| AI Features (2026) | Workflow automation, search enhancement | — | — |
| Real-Time Translation | Not available | — | — |
| Asynchronous Communication | Optimized with threads and archives | — | — |
| Zoom Rooms Cost(USD per room/month) | N/A | — | — |
| AI Assistant Capability | Slack AI (optional on paid plans) | — | — |
| AI Transcription Languages Supported(languages) | 0 (not native feature) | — | — |
| AI Meeting Assistant | Slack AI (search, summarization, drafting) | — | — |
| AI Transcription Included(support level) | No native feature | — | — |
| AI Translation Languages (2026)(languages) | Limited translation features | — | — |
| AI Meeting Assistant Cost(USD/month) | Copilot Pro required ($20+ per tenant) | — | — |
| AI Assistant Integration | Copilot with GPT-4, speech-to-text, real-time translation | — | — |
| Google Workspace Native Integration | Limited (requires custom setup) | — | — |
| Microsoft 365 Integration Depth(integration level) | 8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI) | — | — |
| Native Microsoft Office Integration | Full (Word, Excel, PowerPoint, Outlook) | — | — |
| Microsoft 365 Ecosystem Integration(integration depth) | Native: Word, Excel, SharePoint, OneDrive, Outlook, Power BI | — | — |
| Office Suite Integration Level | Office 365/Microsoft 365 (native) | — | — |
| Office 365 Integration Level(integration score) | Native (OneDrive, SharePoint, Outlook, Excel co-auth) | — | — |
| Microsoft 365 Integration | Full integration with Office apps | No native integration | — |
| Calendar Integration | Native Outlook calendar sync | Limited third-party apps | — |
| Workflow Automation Complexity | Advanced with conditional logic | — | — |
| Storage Per User (Standard Plan)(GB) | Variable by plan | — | — |
| Cloud Storage (Base Plan)(GB) | 10 GB | — | — |
| File Storage Included(GB) | 5GB (Free), varies by plan | — | — |
| Free Tier File Storage(GB per user) | 1 GB shared workspace | 100 GB per user(winner) | — |
| Message history retention (free plan)(days) | 90 days searchable | — | — |
| File Upload Limit(GB) | 20GB | 250GB(winner) | — |
| File Storage Per User(GB) | 100 (workspace) | 1000 (1TB OneDrive)(winner) | — |
| Meeting Recording Retention (Free)(days) | Unlimited (OneDrive) | — | — |
| Free Plan Cloud Storage(GB) | 5 GB (OneDrive) | — | — |
| Maximum File Upload Size(TB) | 2 GB per file | — | — |
| Meeting Recording Storage (Free)(hours) | Unlimited in OneDrive | — | — |
| Free Recording Storage(GB) | Unlimited | — | — |
| Message History Retention (Free)(searchable messages) | 3,000 searchable | Unlimited | — |
| Open Source | No, proprietary | — | — |
| Maximum Video Length (Free Tier)(minutes) | N/A | — | — |
| Maximum Video Resolution(pixels) | Requires 3rd party | 1080p (1920x1080) | 1080p (premium servers) |
| Standard Video Resolution(pixels) | 1920x1080 | — | — |
| Free Audio Quality(kbps) | 128 kbps | — | — |
| Free Tier Message History Retention(days) | 90 days | — | — |
| Enterprise Uptime SLA(%) | 99.99% | — | — |
| Uptime SLA Guarantee(percent) | 99.99%(winner) | 99.9% | — |
| Uptime Guarantee(%) | 99.99% | 99.9% | 99.99% |
| Service uptime SLA guarantee(percent) | 99.99% | — | — |
| User Workspace Limit (Free Tier)(workspaces) | 1 workspace | — | — |
| Maximum Meeting Participants (Free)(participants) | 3 participants | — | — |
| Maximum Meeting Participants (Paid)(participants) | Unlimited (slide deck view only) | — | — |
| SOC 2 Type II Certified | Yes | No | — |
| Custom Workflow Automation | Advanced (Workflow Builder, automations) | Basic (bots only) | — |
| Users Per Workspace(count) | Unlimited | Unlimited | — |
| Maximum Webinar Participants(participants) | 10,000 | — | — |
| Maximum Server/Community Size(members) | Unlimited (16.7M+ in largest server) | — | — |
| Total Registered Users(millions) | 750 million | — | — |
| Daily Active Users(millions) | 21 million | 320 million(winner) | — |
| Monthly Active Users(millions) | ~50 million (daily active) | 320 million | 200 million |
| Paying Organizations/Enterprise Customers(thousands) | 750 (in thousands = 750,000 paying orgs) | — | — |
| Daily Posts Published (Organic)(millions) | N/A | — | — |
| Number of Public Communities(thousands) | ~8,000 public servers (estimated) | — | — |
| Active Workspaces(workspaces) | 750,000+ | — | — |
| Global Active Users(millions) | 750+ million messages daily across 750k+ organizations | — | — |
| Active Workspaces/Deployments(count) | 750,000 | — | — |
| Active Organizational Users(organizations) | 750,000+ workspaces | — | — |
| User Base Size(millions) | 21 million daily active | 280 million monthly active | 200 million registered |
| Registered Users Globally(millions) | 350+ million monthly active users | 500+ million registered users(winner) | — |
| Monthly Active Users (MAU)(millions) | 320M | — | — |
| Active Monthly Users(millions) | 300+ million users | — | — |
| Free Tier Monthly Active Users(millions) | 320 million(winner) | 150 million | — |
| Threading Model | Channel-based threads (contextual loss in active channels) | — | — |
| Open-Source | No (proprietary) | — | — |
| Mobile App Type | Native iOS/Android with feature-parity | — | — |
| Native Video/Audio Calls | Yes (Slack Huddles) | — | — |
| Native App Integrations Available(count) | 2,400+ apps | — | — |
| Paid Workspaces/Users (Enterprise Adoption)(workspaces) | 750,000+ paid workspaces | — | — |
| Active Global Workspaces/Deployments(count) | 750,000+ active workspaces | — | — |
| Active Workspaces (2024)(thousands) | 750,000+ workspaces | — | — |
| Source Code Availability | Proprietary/closed | Closed proprietary | Proprietary/Closed |
| HIPAA Compliance Certified | Yes (Business+ plan required) | Yes | No |
| Data Residency Control(null) | Microsoft-managed regional datacenters (limited control) | — | — |
| HIPAA Compliance | Not HIPAA certified | — | — |
| Setup Time for New Team(hours) | 0.5-1 hour | — | — |
| Setup Time for New Teams(minutes) | 15-20 | 30-45 | 5-10 |
| Voice Codec Quality Rating(score (1-10)) | 7.5 | 8 | 9.5 |
| Voice Chat Quality Rating(subjective score) | Excellent (optimized for reliability) | Outstanding (advanced codecs) | — |
| User interface satisfaction rating(out of 10) | 9.2/10 | — | — |
| Average User Adoption Time(days) | 1-3 days | — | — |
| G2 Ease of Use Rating (2024)(stars) | 4.5/5(winner) | 4.0/5 | — |
| G2 User Interface Rating(out of 5) | 4.6/5 (12,400 reviews)(winner) | 4.1/5 (8,300 reviews) | — |
| iOS App Rating(stars) | 4.7 | — | — |
| Mobile App Quality Rating(stars) | 4.5 | — | — |
| Mobile App Store Rating(stars) | 4.2 (2.4M reviews) | 4.3 stars (3.8M reviews)(winner) | — |
| Maximum video call participants (free tier)(people) | 100 participants | — | — |
| Maximum Video Conference Participants (Free)(people) | Limited (typically 3-4) | 100(winner) | — |
| Maximum Simultaneous Video Participants (Free)(participants) | 50 with Nitro ($99.99/year) | — | — |
| Enterprise app marketplace size(applications) | 2,000+ apps (Slack App Directory) | — | — |
| Third-Party Bot Integrations Available(count) | 1,500+ apps | 10,000+ bots(winner) | — |
| Developer API for Integrations | Comprehensive API with bot framework (GDC 2026) | — | — |
| Bot/Integration Ecosystem Size(available bots) | 10,000+ bots | — | — |
| Free Group Video Call Duration Limit(minutes) | 40 | 60 minutes | Unlimited |
| Message Search Capability(text) | Full-text indexed across all messages | Basic keyword search (limited free tier) | — |
| Message History (Free Plan)(days) | 90 days | unlimited | unlimited |
| Message Search History(messages) | 10,000 (free tier); unlimited (paid) | — | — |
| Organizations Using Platform(count (thousands)) | 750,000+ | — | — |
| GDPR Compliance | Certified (SOC 2 Type II, GDPR) | — | — |
| GitHub Stars (Community)(stars) | N/A (proprietary) | — | — |
| Maximum Video Length (Free Plan)(minutes) | N/A | — | — |
| Free Tier Video Storage(videos) | Unlimited (90-day history) | — | — |
| Enterprise Support SLA | 1-4 hours (Enterprise Grid) | — | — |
| Enterprise Support Response Time(hours) | 1 | — | — |
| Real-Time Chat Capability(support level) | Full-featured messaging | — | — |
| Asynchronous Workflow Optimization(design focus) | Secondary feature | — | — |
| Countries Supported(countries) | 150+ | — | — |
| Languages Supported(languages) | 10+ | — | — |
| AI-Powered Features(count) | Slack AI assistant included | Copilot Pro integration | No native AI features |
| AI Features Integration(count) | 8 (Copilot, live transcription, noise suppression, translation) | — | — |
| Free Cloud Recording Capability | No, paid only | — | — |
| Office 365 Native Integration | Full native integration | — | — |
| Maximum Free Breakout Rooms(rooms) | 50 rooms | — | — |
| Maximum Meeting Participants(participants) | 10,000 | — | — |
| Free Tier Participant Limit(participants) | 100 participants | Unlimited | — |
| Maximum Participants (Standard Meeting)(people) | 300 participants | — | — |
| Maximum Participants Per Meeting(participants) | 300 standard | — | — |
| Free Tier Video Call Duration(minutes) | Unlimited | — | — |
| Maximum Group Call Participants (Free Tier)(users) | 100 | — | — |
| Maximum Webinar Participants (Paid Plan)(users) | 100 | — | — |
| Maximum Concurrent Voice Users (Free Tier)(users) | Unlimited | — | — |
| Advanced Chat Features (Channels, Threading, Workflows) | Advanced (channels, nested threads, queues, connectors) | — | — |
| Gartner Meeting Solutions Rating(stars) | 4.5 stars | — | — |
| Gartner Review Sample Size(reviews) | 3,669 reviews | — | — |
| Gartner Customer Rating(stars) | 4.5 stars | — | — |
| Customer Reviews Analyzed(count) | 3,668 reviews | — | — |
| 3-Year Total Cost of Ownership (1,000 users)(USD) | Lower (integrated M365) | — | — |
| Video Quality Rating(%) | 7.9% positive | — | — |
| Real-Time Translation Support(null) | Limited to basic captions | — | — |
| Native Cisco Hardware Integration(null) | Third-party device support only | — | — |
| AI Features in Base Tier | Limited (Copilot requires E5) | — | — |
| Maximum Video Sharing Quality(fps at resolution) | 4K at 30fps | — | — |
| Default Video Resolution(pixels) | 720p standard (1080p available) | — | — |
| Native Maximum Video Resolution(p/fps) | 720p30fps | — | — |
| Screen Share FPS (Free Tier)(fps) | 60 | — | — |
| 3-Year TCO Advantage for 1,000 Users with M365(percentage savings) | 47% lower cost | — | — |
| Video Resolution Support(maximum resolution) | 4K (3840x2160) | 1080p (1920x1080) | — |
| Free Plan Meeting Duration Limit(minutes) | 60 minutes (3+ participants) | — | — |
| Supported Operating Systems | Windows, Mac, iOS, Android, Web | — | — |
| Monthly Active Users (2024)(millions) | 320 million | — | — |
| Maximum Free Server Categories(categories) | Limited (fixed structure) | Unlimited | — |
| Enterprise Fortune 500 Adoption Rate(percent) | 80%(winner) | Less than 5% | — |
| Free Tier Meeting Duration for Group Calls(minutes) | 60 minutes (unlimited participants) | — | — |
| Annual TCO (1,000 users, 3-year average)(USD) | $48,000-150,000 | — | — |
| Free Meeting Duration Limit(minutes) | Unlimited | — | — |
| Maximum Simultaneous Screen Shares(participants) | 4 participants | — | — |
| Maximum Free Plan Participants(people) | 100 participants | — | — |
| Free Group Meeting Duration(minutes) | Unlimited | — | — |
| Free Video Call Duration Limit(minutes) | Unlimited | — | — |
| Base Pricing (Team/Workspace)(USD per month) | $6 per user (Teams Essentials) | Free(winner) | — |
| Office 365 App Integration Level(integration depth) | Native integration (Word, Excel, PowerPoint, OneDrive) | — | — |
| Cross-Platform Native Support(platforms) | Windows, Mac, iOS, Android | — | — |
| Free Plan Maximum Participants(participants) | 100 | — | — |
| Free Plan Group Meeting Duration(minutes) | 60 | — | — |
| Free Trial Period(days) | 30 days (limited features) | — | — |
| Enterprise SSO Support | Limited/Third-party only | — | — |
| Public Bot Library Size(bots) | 500,000+ | — | — |
| Voice Codec Quality(codec type) | Opus (optimized, 128kbps default) | — | — |
| Message History Scanning for AI Training(status) | Yes (Discord trains AI on content) | — | — |
| Audio Sampling Rate(kHz) | 48kHz premium | — | — |
| Google Calendar Integration | No direct integration | — | — |
| Average Daily Time Spent(minutes) | 195 minutes | — | — |
| Free Tier Group Video Call Duration Limit(minutes) | Unlimited | — | — |
| Monthly Cost (Pro/Premium Plan)(USD) | $9.99 | — | — |
| Source Code Accessibility | Proprietary/Closed-source | — | — |
| User Data Retention Control | Limited control; Discord retains indefinitely | — | — |
| Auto-Delete Message Option | Not available | — | — |
| Moderation Tools Sophistication(features) | Advanced (roles, automod, audit logs, permissions) | — | — |
App Integrations(count)
Slack
2,600+(winner)
Microsoft Teams
~700
Discord
—
Third-Party App Integrations(count)
Slack
2,400+(winner)
Microsoft Teams
1,000+
Discord
—
Video Meeting Capacity(participants)
Slack
Up to 2,000 (with paid plan)
Microsoft Teams
Up to 10,000(winner)
Discord
—
Native Office Integration
Slack
Limited (third-party connectors)
Microsoft Teams
Native with SharePoint, OneDrive, Office Web Apps
Discord
—
AI Copilot Features
Slack
Slack AI (summarization, search, assisted writing)
Microsoft Teams
Microsoft Copilot Pro (enterprise AI, meeting insights)
Discord
—
Message History Retention on Free Plan(count)
Slack
10,000 most recent
Microsoft Teams
—
Discord
—
Free Tier Meeting Participant Limit(participants)
Slack
Unlimited (Slack Huddles for video limited to 50 participants)
Microsoft Teams
—
Discord
—
Native Video Conferencing
Slack
Huddles for brief video, limited to 50 participants; requires external tool for full conferencing
Microsoft Teams
—
Discord
—
Meeting Recording & Auto-Transcription
Slack
Not native; requires integration with Otter.ai or similar third-party services
Microsoft Teams
—
Discord
—
Asynchronous Communication Strength(scale 1-5)
Slack
5 out of 5 (core feature with channels, threads, and history)
Microsoft Teams
—
Discord
—
Third-Party Integrations Available(count)
Slack
2,000+
Microsoft Teams
—
Discord
—
Enterprise AI Features
Slack
Advanced AI assistant, smart summaries, automation
Microsoft Teams
—
Discord
—
Free Plan Message History(days)
Slack
90 days
Microsoft Teams
—
Discord
—
Free Message History(days)
Slack
90 days maximum
Microsoft Teams
Unlimited
Discord
—
Free Plan Message History Retention(days)
Slack
90 days
Microsoft Teams
—
Discord
—
Free Plan External Guest Collaboration(capacity)
Slack
Unlimited external guests via workspace invite
Microsoft Teams
—
Discord
—
Email Service Included
Slack
No
Microsoft Teams
—
Discord
—
Message History Searchable(years)
Slack
10 years standard
Microsoft Teams
—
Discord
—
Workflow Automation Steps(built-in steps)
Slack
50+
Microsoft Teams
—
Discord
—
Message History on Free Plan(days)
Slack
90-day limited access
Microsoft Teams
—
Discord
—
Message History Retention(status)
Slack
10,000 messages (free); unlimited (paid)
Microsoft Teams
—
Discord
—
Built-in Project Management(status)
Slack
No (requires integrations)
Microsoft Teams
—
Discord
—
Max Video Conference Participants(people)
Slack
1000
Microsoft Teams
10000
Discord
50
Video Conference Max Participants(participants)
Slack
150
Microsoft Teams
300(winner)
Discord
—
Message Search History (Free Tier)(days)
Slack
90 days
Microsoft Teams
90 days
Discord
—
Message Search Speed (Free Tier)(indexing scope)
Slack
All messages indexed instantly
Microsoft Teams
Last 3 months only
Discord
—
Message History Retention (Free Tier)(days)
Slack
90 days
Microsoft Teams
Unlimited
Discord
—
Video Meeting Participant Limit(participants)
Slack
2000(winner)
Microsoft Teams
300
Discord
—
Self-Hosting Capability
Slack
Not available
Microsoft Teams
—
Discord
—
Cloud Storage Included Per User(GB)
Slack
0 GB (integrations only)
Microsoft Teams
—
Discord
—
Maximum Video Conference Participants (Standard Plan)(participants)
Slack
2
Microsoft Teams
—
Discord
—
Message History Search (Self-Hosted)(messages)
Slack
10,000 (free), unlimited (paid)
Microsoft Teams
—
Discord
—
File Storage (Free Plan)(GB)
Slack
5GB
Microsoft Teams
—
Discord
—
Free Plan App Integrations(apps)
Slack
10 maximum
Microsoft Teams
—
Discord
—
Max Group Video Call Participants(users)
Slack
3 (free tier)
Microsoft Teams
10,000
Discord
Unlimited
Voice Call Audio Quality Score(1-10 scale)
Slack
7.5
Microsoft Teams
8.0
Discord
9.5
Offline Message Functionality(yes/no)
Slack
Limited
Microsoft Teams
Full
Discord
Limited
Maximum Free Tier Group Meeting Duration(hours)
Slack
24 hours
Microsoft Teams
—
Discord
—
AI Meeting Notes Availability
Slack
Premium only ($10/user/month)
Microsoft Teams
—
Discord
—
AI Meeting Summaries
Slack
Basic transcription only
Microsoft Teams
—
Discord
—
Free Meeting Duration (3+ participants)(minutes)
Slack
60 minutes
Microsoft Teams
—
Discord
—
Real-Time Translation Languages(count)
Slack
31 languages
Microsoft Teams
—
Discord
—
Maximum Video Meeting Participants(participants)
Slack
300+ participants(winner)
Microsoft Teams
25 participants
Discord
—
Language Translation Support(languages)
Slack
40+ languages (Teams Premium)(winner)
Microsoft Teams
0 (no native support)
Discord
—
Maximum Video Conference Participants(participants)
Slack
10,000 participants
Microsoft Teams
—
Discord
—
Supported Language Captions(languages)
Slack
60+ languages(winner)
Microsoft Teams
15 languages
Discord
—
Breakout Rooms Maximum Count(rooms)
Slack
50 breakout rooms
Microsoft Teams
—
Discord
—
Screen Sharing Participants(simultaneous users)
Slack
1 primary
Microsoft Teams
—
Discord
—
Chat Message Retention (Free Tier)(months)
Slack
36+ months
Microsoft Teams
—
Discord
—
Free Tier Message History(messages)
Slack
10,000 most recent
Microsoft Teams
Unlimited
Discord
—
Video Participants (Free Tier)(maximum simultaneous)
Slack
100 video participants(winner)
Microsoft Teams
8 video participants
Discord
—
Video Conference Participant Limit(participants)
Slack
300 participants
Microsoft Teams
—
Discord
—
Video Meeting Notes with AI
Slack
No
Microsoft Teams
—
Discord
—
Group Video Call Duration Limit (Free)(minutes)
Slack
1440 (24 hours)
Microsoft Teams
—
Discord
—
Real-Time Translation Support(Languages)
Slack
Limited, experimental
Microsoft Teams
—
Discord
—
Message History Retention(text)
Slack
Permanent (searchable)
Microsoft Teams
—
Discord
—
AI Assistant Capabilities(text)
Slack
Basic moderation bots
Microsoft Teams
—
Discord
—
Max File Upload Size(MB)
Slack
100 MB
Microsoft Teams
—
Discord
—
Voice Channel Participant Limit(users)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Screen Share Quality(fps @ resolution)
Slack
1080p @ 60fps
Microsoft Teams
—
Discord
—
Maximum Voice Call Participants(users)
Slack
50 participants
Microsoft Teams
—
Discord
—
Content Retention Period (Free)(days)
Slack
30 days
Microsoft Teams
—
Discord
—
Maximum Free Storage Per Upload(MB)
Slack
100 MB
Microsoft Teams
—
Discord
—
Native Meeting Recording
Slack
No (bot-dependent)
Microsoft Teams
—
Discord
—
Persistent Message History
Slack
Yes (unlimited)
Microsoft Teams
—
Discord
—
Free Tier File Upload Size Limit(MB)
Slack
8 MB per file
Microsoft Teams
—
Discord
—
Message History Search
Slack
Full history searchable
Microsoft Teams
—
Discord
—
Paid Starting Price(USD/user/mo)
Slack
$7.25(winner)
Microsoft Teams
Included with M365
Discord
—
Standalone Monthly Pricing (Pro Tier)(USD per user per month)
Slack
$7.25
Microsoft Teams
$6.00 (with Microsoft 365 Business Basic)(winner)
Discord
—
Annual Cost per User (Pro Tier)(USD)
Slack
$87 (billed yearly)
Microsoft Teams
$72 (bundled pricing)(winner)
Discord
—
Monthly Cost per 20-Person Team(USD)
Slack
$3,600 (Pro plan at $15/user)
Microsoft Teams
—
Discord
—
Base Monthly Cost Per User(USD)
Slack
$8.25 (Pro plan, min 3 users)(winner)
Microsoft Teams
$6-12
Discord
—
Base Monthly Cost Per User(USD)
Slack
$7.25
Microsoft Teams
—
Discord
—
Business+ Tier Monthly Cost Per User(USD)
Slack
$12.50
Microsoft Teams
—
Discord
—
Price Stability (2024-2026)(months)
Slack
No increases for 33 months
Microsoft Teams
—
Discord
—
Free Tier Cost(USD)
Slack
Free
Microsoft Teams
Completely free
Discord
—
Pro/Standard Monthly Cost(USD per user/month)
Slack
$7.25
Microsoft Teams
—
Discord
—
Minimum Monthly Cost Per User(USD)
Slack
$7.25
Microsoft Teams
—
Discord
—
Years Price Stable (2026)(months)
Slack
33+ months
Microsoft Teams
—
Discord
—
Pro Plan Annual Cost(USD)
Slack
$150 (billed monthly)
Microsoft Teams
$70/year (via Microsoft 365 Business Basic)(winner)
Discord
—
Pro Plan Monthly Cost (Annual Billing)(USD per user)
Slack
$8.75
Microsoft Teams
—
Discord
—
Monthly Cost (Pro Plan)(USD)
Slack
$12.50 per user/month
Microsoft Teams
$15 (Essentials) / $20 (Standard)
Discord
$9.99 per server/month
Enterprise Plan Monthly Cost Per User(USD)
Slack
$12.50
Microsoft Teams
—
Discord
—
Paid Plan Starting Price(USD/month)
Slack
$7.25
Microsoft Teams
$6
Discord
Free (Nitro $9.99/year)
Monthly Cost Per User(USD)
Slack
$8-12.50 (Pro/Business+)
Microsoft Teams
—
Discord
—
Monthly Cost (Pro Plan, 50 users)(USD)
Slack
$412.50/month
Microsoft Teams
—
Discord
—
Monthly Cost (10 Users, Annual)(USD)
Slack
$150/month ($1,800/year)
Microsoft Teams
—
Discord
—
Price Per User Per Month (Pro/Standard)(USD)
Slack
$12.50/user (Pro plan)
Microsoft Teams
—
Discord
—
Base Monthly Cost (10-person team)(USD)
Slack
$80-150
Microsoft Teams
—
Discord
—
Cost for 50-person team(USD/month)
Slack
$400-750
Microsoft Teams
—
Discord
—
Pro Plan Monthly Cost(USD/month per user)
Slack
$8.75
Microsoft Teams
$6.99(winner)
Discord
—
Annual Subscription Cost (Pro, 100 users)(USD)
Slack
$10,500
Microsoft Teams
$7,800 or free with Microsoft 365(winner)
Discord
—
Monthly Subscription Cost (Pro Plan)(USD)
Slack
$12.50
Microsoft Teams
—
Discord
—
Team Size Cost Efficiency Threshold(team members)
Slack
Cost-effective until ~12 users
Microsoft Teams
—
Discord
—
Monthly Subscription Cost (Pro/Standard)(USD)
Slack
$8.25
Microsoft Teams
$0 (bundled) or $12.50 (standalone)(winner)
Discord
—
Pro Plan Monthly Cost per User(USD)
Slack
$12.50
Microsoft Teams
$6.00(winner)
Discord
—
Cost Per User (Annual, Lowest Paid Tier)(USD/month)
Slack
$8/month
Microsoft Teams
—
Discord
—
Monthly Cost Per User (Standard Tier, Annual Billing)(USD)
Slack
$7.25
Microsoft Teams
—
Discord
—
Base Cost Per User/Month(USD)
Slack
$8.99
Microsoft Teams
—
Discord
—
Monthly Cost Per User (Standard)(USD)
Slack
$8-15
Microsoft Teams
—
Discord
—
Base Monthly Pricing (Annual Billed)(USD per user)
Slack
$8
Microsoft Teams
—
Discord
—
Pro/Standard Plan Cost per User/Month(USD)
Slack
$12.50/user/month
Microsoft Teams
—
Discord
—
Monthly Cost Per User (Pro Plan)(USD)
Slack
$8.75
Microsoft Teams
$6.00 (or free with M365)
Discord
Free (Nitro $9.99 optional)
Starting Paid Plan Cost(USD/month)
Slack
$6/month (Microsoft 365 bundle)
Microsoft Teams
—
Discord
—
Free Plan Monthly Cost(USD)
Slack
$6 (Teams Essentials)
Microsoft Teams
—
Discord
—
Starting Monthly Price per User(USD)
Slack
$4.50
Microsoft Teams
—
Discord
—
Base Pricing (Monthly)(USD)
Slack
$7.00 (Business Basic 2026 price)
Microsoft Teams
Free (with Nitro at $9.99)(winner)
Discord
—
Starting Price (Monthly)(USD)
Slack
$0 (Free) or $6 (Standard)
Microsoft Teams
—
Discord
—
Free Tier Call Duration Limit(minutes)
Slack
60 minutes (100 participants max)
Microsoft Teams
Unlimited
Discord
—
Monthly Cost (1 Pro User)(USD)
Slack
$6.00
Microsoft Teams
$0 (free tier)(winner)
Discord
—
Base Monthly Cost (Single User)(USD)
Slack
$4.00 (Teams Essentials) - $12.50 (Teams Premium)
Microsoft Teams
—
Discord
—
Free Tier Monthly Cost(USD)
Slack
$0 (limited)
Microsoft Teams
—
Discord
—
Workspace/Server Creation Cost(USD per month)
Slack
Free Teams ($5-12/month for Pro)
Microsoft Teams
Free (unlimited)
Discord
—
Paid Plan Cost (Single User/Month)(USD)
Slack
Discord Nitro $9.99-99.99/year
Microsoft Teams
—
Discord
—
Cost for Personal Use(USD/month)
Slack
Free (with Nitro at $9.99/mo optional)
Microsoft Teams
—
Discord
—
Monthly Cost (Basic Premium)(USD)
Slack
$9.99
Microsoft Teams
—
Discord
—
Premium Subscription Cost(USD/month)
Slack
$9.99 (Discord Nitro)
Microsoft Teams
—
Discord
—
Message Search Speed(seconds)
Slack
Excellent - optimized search indexing
Microsoft Teams
2-4 seconds average
Discord
0.1-0.3 seconds
Voice Audio Codec Quality(kHz)
Slack
16 kHz
Microsoft Teams
48 kHz(winner)
Discord
—
Maximum Video Call Participants(people)
Slack
15 participants
Microsoft Teams
50+ participants(winner)
Discord
—
Real-time Messaging Speed(ms (message delivery latency))
Slack
50-100ms (instant)
Microsoft Teams
—
Discord
—
Time to Deploy(seconds (average))
Slack
3-7
Microsoft Teams
1-3
Discord
1
Desktop App Memory Usage(MB)
Slack
280 MB(winner)
Microsoft Teams
450 MB
Discord
—
Message Search Response Time(seconds)
Slack
2-4 seconds
Microsoft Teams
—
Discord
—
Message Delivery Latency(milliseconds)
Slack
<100ms(winner)
Microsoft Teams
200-300ms
Discord
—
Minimum Bandwidth for HD Video(Mbps)
Slack
4.5 Mbps
Microsoft Teams
—
Discord
—
Voice Latency(milliseconds)
Slack
80-120ms
Microsoft Teams
50-80ms(winner)
Discord
—
Screen Sharing Maximum FPS(fps)
Slack
30fps
Microsoft Teams
60fps(winner)
Discord
—
Video Quality (Standard)(resolution & fps)
Slack
1080p @ 30fps
Microsoft Teams
—
Discord
—
4K Video Quality Support(fps)
Slack
4K @ 30fps (Premium only)
Microsoft Teams
—
Discord
—
Voice Latency (Lower is Better)(milliseconds)
Slack
50-80ms
Microsoft Teams
20-30ms(winner)
Discord
—
Audio Latency(milliseconds)
Slack
50-100ms with spatial audio
Microsoft Teams
—
Discord
—
Mobile App Size (iOS)(MB)
Slack
~150 MB
Microsoft Teams
—
Discord
—
Voice Chat Bitrate(kbps)
Slack
128 kbps optimized
Microsoft Teams
—
Discord
—
Average Voice Latency(milliseconds)
Slack
Under 100ms optimized
Microsoft Teams
—
Discord
—
Mobile App File Size(MB)
Slack
90-120 MB
Microsoft Teams
—
Discord
—
Mobile App Feature Parity
Slack
95%
Microsoft Teams
85%
Discord
—
Browser Join Without App
Slack
Often requires app/account
Microsoft Teams
—
Discord
—
Auto-Generated Meeting Transcripts
Slack
Available (free in 43 languages)
Microsoft Teams
—
Discord
—
Real-Time Caption Languages Supported(languages)
Slack
60+ languages
Microsoft Teams
—
Discord
—
Real-Time Auto-Transcription Languages(languages)
Slack
Speech-to-text via integrations only
Microsoft Teams
—
Discord
—
Global Market Share(%)
Slack
65%
Microsoft Teams
—
Discord
—
Enterprise Deployment Adoption (500+ seat orgs)(percentage)
Slack
67% of deployments
Microsoft Teams
—
Discord
—
Global Enterprise Video Conferencing Market Share (2024)(percent)
Slack
28.2%
Microsoft Teams
—
Discord
—
Free Trial Duration(days)
Slack
7 days
Microsoft Teams
—
Discord
—
Learning Curve(difficulty rating)
Slack
2
Microsoft Teams
5
Discord
1.5
Message Search Quality Score(1-10 scale)
Slack
9.5
Microsoft Teams
6.0
Discord
2.0
User Learning Curve(difficulty rating)
Slack
Steep (enterprise-focused interface)
Microsoft Teams
Minimal (intuitive design)
Discord
—
Setup Time for New Users(hours)
Slack
8-10 (account creation + installation)
Microsoft Teams
—
Discord
—
Daily Active Users Worldwide(millions)
Slack
20+ million
Microsoft Teams
—
Discord
—
Self-Hosting Available
Slack
No
Microsoft Teams
—
Discord
—
Self-Hosted/On-Premises Option
Slack
No (cloud-only)
Microsoft Teams
—
Discord
—
Time to Operational Team Setup(hours)
Slack
Less than 1 hour
Microsoft Teams
—
Discord
—
Open Source Availability
Slack
Proprietary closed-source
Microsoft Teams
—
Discord
—
Self-Hosted Deployment Option
Slack
Cloud-only SaaS
Microsoft Teams
—
Discord
—
On-Premise Deployment Support
Slack
Not available
Microsoft Teams
—
Discord
—
Self-Hosting Option
Slack
No
Microsoft Teams
—
Discord
—
Self-Hosting Support
Slack
Not supported; Discord-only infrastructure
Microsoft Teams
—
Discord
—
Google Workspace Integration Level
Slack
2 out of 5 (available via integration, not native)
Microsoft Teams
—
Discord
—
AI Features Count (2026)(features)
Slack
30+ (CRM tools, meeting summaries, automation, SlackBot enhancements)
Microsoft Teams
—
Discord
—
Available Integrations(integrations)
Slack
2000+
Microsoft Teams
—
Discord
—
Third-Party Integrations Available(count)
Slack
2,000+
Microsoft Teams
500+
Discord
150+
Third-Party App Integrations Available(apps)
Slack
2,300+
Microsoft Teams
—
Discord
—
Native Integrations(count)
Slack
2,000+
Microsoft Teams
—
Discord
—
Available Integrations(count)
Slack
2,000+(winner)
Microsoft Teams
1,000+ native integrations
Discord
—
Third-Party Integrations (Native)(count)
Slack
1000+ via Microsoft AppSource
Microsoft Teams
—
Discord
—
Deployment Options
Slack
Cloud-based SaaS only
Microsoft Teams
—
Discord
—
Deployment Options
Slack
Cloud-only SaaS
Microsoft Teams
Cloud-only (SaaS)
Discord
—
GDPR & Data Sovereignty Compliance
Slack
Compliant but data on Salesforce servers
Microsoft Teams
—
Discord
—
End-to-End Encryption Available
Slack
DMs only, Enterprise+ plan
Microsoft Teams
—
Discord
—
FedRAMP Authorization(yes/no)
Slack
No
Microsoft Teams
—
Discord
—
End-to-End Encryption Default(null)
Slack
Not available
Microsoft Teams
—
Discord
—
End-to-End Encryption
Slack
Partial (DMs only, beta feature)
Microsoft Teams
Not enabled by default (optional for 1-on-1 only)
Discord
—
Enterprise Security Certifications(count)
Slack
SOC 2, HIPAA, FedRAMP
Microsoft Teams
SOC 2, FedRAMP, ISO 27001, HIPAA
Discord
SOC 2 only
Enterprise Security Compliance(certifications)
Slack
ISO 27001, SOC 2, HIPAA, GDPR
Microsoft Teams
SOC 2, GDPR (limited enterprise focus)
Discord
—
Security Certifications(count)
Slack
8 (SOC 2, FedRAMP, HIPAA, ISO 27001)
Microsoft Teams
—
Discord
—
HIPAA Compliance Certification(yes/no)
Slack
Certified
Microsoft Teams
Not certified
Discord
—
SOC 2 Type II Compliance
Slack
Yes (SOC 2, HIPAA, FedRAMP)
Microsoft Teams
Yes
Discord
—
End-to-End Encryption Launch Year(year)
Slack
2021
Microsoft Teams
—
Discord
—
SOC 2 Compliance(text)
Slack
Yes, SOC 2 Type II
Microsoft Teams
—
Discord
—
Default End-to-End Encryption
Slack
No (opt-in only)
Microsoft Teams
—
Discord
—
Default Encryption Type
Slack
Server-side only (E2E requires manual enable)
Microsoft Teams
—
Discord
—
Maximum Meeting Participants(participants)
Slack
Unlimited group chats
Microsoft Teams
Up to 50 (voice channel)
Discord
—
Built-in Task Management(features)
Slack
No: messaging-only, requires integrations
Microsoft Teams
—
Discord
—
Message History Searchability(months)
Slack
90 days (Free/Pro), unlimited with Enterprise
Microsoft Teams
—
Discord
—
Third-party Integrations(integrations)
Slack
2000+
Microsoft Teams
—
Discord
—
Native Integrations Available(integrations)
Slack
2200+(winner)
Microsoft Teams
1000+
Discord
—
Third-Party Integrations(integrations)
Slack
2,000+
Microsoft Teams
500+
Discord
400+
Pre-built Integrations(count)
Slack
2,400+ integrations
Microsoft Teams
—
Discord
—
Native Third-Party Integrations(count)
Slack
100+
Microsoft Teams
500+ apps(winner)
Discord
—
Native Microsoft 365 Integration
Slack
API-based (basic)
Microsoft Teams
Native (deep)
Discord
—
AI Features (2026)
Slack
Workflow automation, search enhancement
Microsoft Teams
—
Discord
—
Real-Time Translation
Slack
Not available
Microsoft Teams
—
Discord
—
Asynchronous Communication
Slack
Optimized with threads and archives
Microsoft Teams
—
Discord
—
Zoom Rooms Cost(USD per room/month)
Slack
N/A
Microsoft Teams
—
Discord
—
AI Assistant Capability
Slack
Slack AI (optional on paid plans)
Microsoft Teams
—
Discord
—
AI Transcription Languages Supported(languages)
Slack
0 (not native feature)
Microsoft Teams
—
Discord
—
AI Meeting Assistant
Slack
Slack AI (search, summarization, drafting)
Microsoft Teams
—
Discord
—
AI Transcription Included(support level)
Slack
No native feature
Microsoft Teams
—
Discord
—
AI Translation Languages (2026)(languages)
Slack
Limited translation features
Microsoft Teams
—
Discord
—
AI Meeting Assistant Cost(USD/month)
Slack
Copilot Pro required ($20+ per tenant)
Microsoft Teams
—
Discord
—
AI Assistant Integration
Slack
Copilot with GPT-4, speech-to-text, real-time translation
Microsoft Teams
—
Discord
—
Google Workspace Native Integration
Slack
Limited (requires custom setup)
Microsoft Teams
—
Discord
—
Microsoft 365 Integration Depth(integration level)
Slack
8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)
Microsoft Teams
—
Discord
—
Native Microsoft Office Integration
Slack
Full (Word, Excel, PowerPoint, Outlook)
Microsoft Teams
—
Discord
—
Microsoft 365 Ecosystem Integration(integration depth)
Slack
Native: Word, Excel, SharePoint, OneDrive, Outlook, Power BI
Microsoft Teams
—
Discord
—
Office Suite Integration Level
Slack
Office 365/Microsoft 365 (native)
Microsoft Teams
—
Discord
—
Office 365 Integration Level(integration score)
Slack
Native (OneDrive, SharePoint, Outlook, Excel co-auth)
Microsoft Teams
—
Discord
—
Microsoft 365 Integration
Slack
Full integration with Office apps
Microsoft Teams
No native integration
Discord
—
Calendar Integration
Slack
Native Outlook calendar sync
Microsoft Teams
Limited third-party apps
Discord
—
Workflow Automation Complexity
Slack
Advanced with conditional logic
Microsoft Teams
—
Discord
—
Storage Per User (Standard Plan)(GB)
Slack
Variable by plan
Microsoft Teams
—
Discord
—
Cloud Storage (Base Plan)(GB)
Slack
10 GB
Microsoft Teams
—
Discord
—
File Storage Included(GB)
Slack
5GB (Free), varies by plan
Microsoft Teams
—
Discord
—
Free Tier File Storage(GB per user)
Slack
1 GB shared workspace
Microsoft Teams
100 GB per user(winner)
Discord
—
Message history retention (free plan)(days)
Slack
90 days searchable
Microsoft Teams
—
Discord
—
File Upload Limit(GB)
Slack
20GB
Microsoft Teams
250GB(winner)
Discord
—
File Storage Per User(GB)
Slack
100 (workspace)
Microsoft Teams
1000 (1TB OneDrive)(winner)
Discord
—
Meeting Recording Retention (Free)(days)
Slack
Unlimited (OneDrive)
Microsoft Teams
—
Discord
—
Free Plan Cloud Storage(GB)
Slack
5 GB (OneDrive)
Microsoft Teams
—
Discord
—
Maximum File Upload Size(TB)
Slack
2 GB per file
Microsoft Teams
—
Discord
—
Meeting Recording Storage (Free)(hours)
Slack
Unlimited in OneDrive
Microsoft Teams
—
Discord
—
Free Recording Storage(GB)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Message History Retention (Free)(searchable messages)
Slack
3,000 searchable
Microsoft Teams
Unlimited
Discord
—
Open Source
Slack
No, proprietary
Microsoft Teams
—
Discord
—
Maximum Video Length (Free Tier)(minutes)
Slack
N/A
Microsoft Teams
—
Discord
—
Maximum Video Resolution(pixels)
Slack
Requires 3rd party
Microsoft Teams
1080p (1920x1080)
Discord
1080p (premium servers)
Standard Video Resolution(pixels)
Slack
1920x1080
Microsoft Teams
—
Discord
—
Free Audio Quality(kbps)
Slack
128 kbps
Microsoft Teams
—
Discord
—
Free Tier Message History Retention(days)
Slack
90 days
Microsoft Teams
—
Discord
—
Enterprise Uptime SLA(%)
Slack
99.99%
Microsoft Teams
—
Discord
—
Uptime SLA Guarantee(percent)
Slack
99.99%(winner)
Microsoft Teams
99.9%
Discord
—
Uptime Guarantee(%)
Slack
99.99%
Microsoft Teams
99.9%
Discord
99.99%
Service uptime SLA guarantee(percent)
Slack
99.99%
Microsoft Teams
—
Discord
—
User Workspace Limit (Free Tier)(workspaces)
Slack
1 workspace
Microsoft Teams
—
Discord
—
Maximum Meeting Participants (Free)(participants)
Slack
3 participants
Microsoft Teams
—
Discord
—
Maximum Meeting Participants (Paid)(participants)
Slack
Unlimited (slide deck view only)
Microsoft Teams
—
Discord
—
SOC 2 Type II Certified
Slack
Yes
Microsoft Teams
No
Discord
—
Custom Workflow Automation
Slack
Advanced (Workflow Builder, automations)
Microsoft Teams
Basic (bots only)
Discord
—
Users Per Workspace(count)
Slack
Unlimited
Microsoft Teams
Unlimited
Discord
—
Maximum Webinar Participants(participants)
Slack
10,000
Microsoft Teams
—
Discord
—
Maximum Server/Community Size(members)
Slack
Unlimited (16.7M+ in largest server)
Microsoft Teams
—
Discord
—
Total Registered Users(millions)
Slack
750 million
Microsoft Teams
—
Discord
—
Daily Active Users(millions)
Slack
21 million
Microsoft Teams
320 million(winner)
Discord
—
Monthly Active Users(millions)
Slack
~50 million (daily active)
Microsoft Teams
320 million
Discord
200 million
Paying Organizations/Enterprise Customers(thousands)
Slack
750 (in thousands = 750,000 paying orgs)
Microsoft Teams
—
Discord
—
Daily Posts Published (Organic)(millions)
Slack
N/A
Microsoft Teams
—
Discord
—
Number of Public Communities(thousands)
Slack
~8,000 public servers (estimated)
Microsoft Teams
—
Discord
—
Active Workspaces(workspaces)
Slack
750,000+
Microsoft Teams
—
Discord
—
Global Active Users(millions)
Slack
750+ million messages daily across 750k+ organizations
Microsoft Teams
—
Discord
—
Active Workspaces/Deployments(count)
Slack
750,000
Microsoft Teams
—
Discord
—
Active Organizational Users(organizations)
Slack
750,000+ workspaces
Microsoft Teams
—
Discord
—
User Base Size(millions)
Slack
21 million daily active
Microsoft Teams
280 million monthly active
Discord
200 million registered
Registered Users Globally(millions)
Slack
350+ million monthly active users
Microsoft Teams
500+ million registered users(winner)
Discord
—
Monthly Active Users (MAU)(millions)
Slack
320M
Microsoft Teams
—
Discord
—
Active Monthly Users(millions)
Slack
300+ million users
Microsoft Teams
—
Discord
—
Free Tier Monthly Active Users(millions)
Slack
320 million(winner)
Microsoft Teams
150 million
Discord
—
Threading Model
Slack
Channel-based threads (contextual loss in active channels)
Microsoft Teams
—
Discord
—
Open-Source
Slack
No (proprietary)
Microsoft Teams
—
Discord
—
Mobile App Type
Slack
Native iOS/Android with feature-parity
Microsoft Teams
—
Discord
—
Native Video/Audio Calls
Slack
Yes (Slack Huddles)
Microsoft Teams
—
Discord
—
Native App Integrations Available(count)
Slack
2,400+ apps
Microsoft Teams
—
Discord
—
Paid Workspaces/Users (Enterprise Adoption)(workspaces)
Slack
750,000+ paid workspaces
Microsoft Teams
—
Discord
—
Active Global Workspaces/Deployments(count)
Slack
750,000+ active workspaces
Microsoft Teams
—
Discord
—
Active Workspaces (2024)(thousands)
Slack
750,000+ workspaces
Microsoft Teams
—
Discord
—
Source Code Availability
Slack
Proprietary/closed
Microsoft Teams
Closed proprietary
Discord
Proprietary/Closed
HIPAA Compliance Certified
Slack
Yes (Business+ plan required)
Microsoft Teams
Yes
Discord
No
Data Residency Control(null)
Slack
Microsoft-managed regional datacenters (limited control)
Microsoft Teams
—
Discord
—
HIPAA Compliance
Slack
Not HIPAA certified
Microsoft Teams
—
Discord
—
Setup Time for New Team(hours)
Slack
0.5-1 hour
Microsoft Teams
—
Discord
—
Setup Time for New Teams(minutes)
Slack
15-20
Microsoft Teams
30-45
Discord
5-10
Voice Codec Quality Rating(score (1-10))
Slack
7.5
Microsoft Teams
8
Discord
9.5
Voice Chat Quality Rating(subjective score)
Slack
Excellent (optimized for reliability)
Microsoft Teams
Outstanding (advanced codecs)
Discord
—
User interface satisfaction rating(out of 10)
Slack
9.2/10
Microsoft Teams
—
Discord
—
Average User Adoption Time(days)
Slack
1-3 days
Microsoft Teams
—
Discord
—
G2 Ease of Use Rating (2024)(stars)
Slack
4.5/5(winner)
Microsoft Teams
4.0/5
Discord
—
G2 User Interface Rating(out of 5)
Slack
4.6/5 (12,400 reviews)(winner)
Microsoft Teams
4.1/5 (8,300 reviews)
Discord
—
iOS App Rating(stars)
Slack
4.7
Microsoft Teams
—
Discord
—
Mobile App Quality Rating(stars)
Slack
4.5
Microsoft Teams
—
Discord
—
Mobile App Store Rating(stars)
Slack
4.2 (2.4M reviews)
Microsoft Teams
4.3 stars (3.8M reviews)(winner)
Discord
—
Maximum video call participants (free tier)(people)
Slack
100 participants
Microsoft Teams
—
Discord
—
Maximum Video Conference Participants (Free)(people)
Slack
Limited (typically 3-4)
Microsoft Teams
100(winner)
Discord
—
Maximum Simultaneous Video Participants (Free)(participants)
Slack
50 with Nitro ($99.99/year)
Microsoft Teams
—
Discord
—
Enterprise app marketplace size(applications)
Slack
2,000+ apps (Slack App Directory)
Microsoft Teams
—
Discord
—
Third-Party Bot Integrations Available(count)
Slack
1,500+ apps
Microsoft Teams
10,000+ bots(winner)
Discord
—
Developer API for Integrations
Slack
Comprehensive API with bot framework (GDC 2026)
Microsoft Teams
—
Discord
—
Bot/Integration Ecosystem Size(available bots)
Slack
10,000+ bots
Microsoft Teams
—
Discord
—
Free Group Video Call Duration Limit(minutes)
Slack
40
Microsoft Teams
60 minutes
Discord
Unlimited
Message Search Capability(text)
Slack
Full-text indexed across all messages
Microsoft Teams
Basic keyword search (limited free tier)
Discord
—
Message History (Free Plan)(days)
Slack
90 days
Microsoft Teams
unlimited
Discord
unlimited
Message Search History(messages)
Slack
10,000 (free tier); unlimited (paid)
Microsoft Teams
—
Discord
—
Organizations Using Platform(count (thousands))
Slack
750,000+
Microsoft Teams
—
Discord
—
GDPR Compliance
Slack
Certified (SOC 2 Type II, GDPR)
Microsoft Teams
—
Discord
—
GitHub Stars (Community)(stars)
Slack
N/A (proprietary)
Microsoft Teams
—
Discord
—
Maximum Video Length (Free Plan)(minutes)
Slack
N/A
Microsoft Teams
—
Discord
—
Free Tier Video Storage(videos)
Slack
Unlimited (90-day history)
Microsoft Teams
—
Discord
—
Enterprise Support SLA
Slack
1-4 hours (Enterprise Grid)
Microsoft Teams
—
Discord
—
Enterprise Support Response Time(hours)
Slack
1
Microsoft Teams
—
Discord
—
Real-Time Chat Capability(support level)
Slack
Full-featured messaging
Microsoft Teams
—
Discord
—
Asynchronous Workflow Optimization(design focus)
Slack
Secondary feature
Microsoft Teams
—
Discord
—
Countries Supported(countries)
Slack
150+
Microsoft Teams
—
Discord
—
Languages Supported(languages)
Slack
10+
Microsoft Teams
—
Discord
—
AI-Powered Features(count)
Slack
Slack AI assistant included
Microsoft Teams
Copilot Pro integration
Discord
No native AI features
AI Features Integration(count)
Slack
8 (Copilot, live transcription, noise suppression, translation)
Microsoft Teams
—
Discord
—
Free Cloud Recording Capability
Slack
No, paid only
Microsoft Teams
—
Discord
—
Office 365 Native Integration
Slack
Full native integration
Microsoft Teams
—
Discord
—
Maximum Free Breakout Rooms(rooms)
Slack
50 rooms
Microsoft Teams
—
Discord
—
Maximum Meeting Participants(participants)
Slack
10,000
Microsoft Teams
—
Discord
—
Free Tier Participant Limit(participants)
Slack
100 participants
Microsoft Teams
Unlimited
Discord
—
Maximum Participants (Standard Meeting)(people)
Slack
300 participants
Microsoft Teams
—
Discord
—
Maximum Participants Per Meeting(participants)
Slack
300 standard
Microsoft Teams
—
Discord
—
Free Tier Video Call Duration(minutes)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Maximum Group Call Participants (Free Tier)(users)
Slack
100
Microsoft Teams
—
Discord
—
Maximum Webinar Participants (Paid Plan)(users)
Slack
100
Microsoft Teams
—
Discord
—
Maximum Concurrent Voice Users (Free Tier)(users)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Advanced Chat Features (Channels, Threading, Workflows)
Slack
Advanced (channels, nested threads, queues, connectors)
Microsoft Teams
—
Discord
—
Gartner Meeting Solutions Rating(stars)
Slack
4.5 stars
Microsoft Teams
—
Discord
—
Gartner Review Sample Size(reviews)
Slack
3,669 reviews
Microsoft Teams
—
Discord
—
Gartner Customer Rating(stars)
Slack
4.5 stars
Microsoft Teams
—
Discord
—
Customer Reviews Analyzed(count)
Slack
3,668 reviews
Microsoft Teams
—
Discord
—
3-Year Total Cost of Ownership (1,000 users)(USD)
Slack
Lower (integrated M365)
Microsoft Teams
—
Discord
—
Video Quality Rating(%)
Slack
7.9% positive
Microsoft Teams
—
Discord
—
Real-Time Translation Support(null)
Slack
Limited to basic captions
Microsoft Teams
—
Discord
—
Native Cisco Hardware Integration(null)
Slack
Third-party device support only
Microsoft Teams
—
Discord
—
AI Features in Base Tier
Slack
Limited (Copilot requires E5)
Microsoft Teams
—
Discord
—
Maximum Video Sharing Quality(fps at resolution)
Slack
4K at 30fps
Microsoft Teams
—
Discord
—
Default Video Resolution(pixels)
Slack
720p standard (1080p available)
Microsoft Teams
—
Discord
—
Native Maximum Video Resolution(p/fps)
Slack
720p30fps
Microsoft Teams
—
Discord
—
Screen Share FPS (Free Tier)(fps)
Slack
60
Microsoft Teams
—
Discord
—
3-Year TCO Advantage for 1,000 Users with M365(percentage savings)
Slack
47% lower cost
Microsoft Teams
—
Discord
—
Video Resolution Support(maximum resolution)
Slack
4K (3840x2160)
Microsoft Teams
1080p (1920x1080)
Discord
—
Free Plan Meeting Duration Limit(minutes)
Slack
60 minutes (3+ participants)
Microsoft Teams
—
Discord
—
Supported Operating Systems
Slack
Windows, Mac, iOS, Android, Web
Microsoft Teams
—
Discord
—
Monthly Active Users (2024)(millions)
Slack
320 million
Microsoft Teams
—
Discord
—
Maximum Free Server Categories(categories)
Slack
Limited (fixed structure)
Microsoft Teams
Unlimited
Discord
—
Enterprise Fortune 500 Adoption Rate(percent)
Slack
80%(winner)
Microsoft Teams
Less than 5%
Discord
—
Free Tier Meeting Duration for Group Calls(minutes)
Slack
60 minutes (unlimited participants)
Microsoft Teams
—
Discord
—
Annual TCO (1,000 users, 3-year average)(USD)
Slack
$48,000-150,000
Microsoft Teams
—
Discord
—
Free Meeting Duration Limit(minutes)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Maximum Simultaneous Screen Shares(participants)
Slack
4 participants
Microsoft Teams
—
Discord
—
Maximum Free Plan Participants(people)
Slack
100 participants
Microsoft Teams
—
Discord
—
Free Group Meeting Duration(minutes)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Free Video Call Duration Limit(minutes)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Base Pricing (Team/Workspace)(USD per month)
Slack
$6 per user (Teams Essentials)
Microsoft Teams
Free(winner)
Discord
—
Office 365 App Integration Level(integration depth)
Slack
Native integration (Word, Excel, PowerPoint, OneDrive)
Microsoft Teams
—
Discord
—
Cross-Platform Native Support(platforms)
Slack
Windows, Mac, iOS, Android
Microsoft Teams
—
Discord
—
Free Plan Maximum Participants(participants)
Slack
100
Microsoft Teams
—
Discord
—
Free Plan Group Meeting Duration(minutes)
Slack
60
Microsoft Teams
—
Discord
—
Free Trial Period(days)
Slack
30 days (limited features)
Microsoft Teams
—
Discord
—
Enterprise SSO Support
Slack
Limited/Third-party only
Microsoft Teams
—
Discord
—
Public Bot Library Size(bots)
Slack
500,000+
Microsoft Teams
—
Discord
—
Voice Codec Quality(codec type)
Slack
Opus (optimized, 128kbps default)
Microsoft Teams
—
Discord
—
Message History Scanning for AI Training(status)
Slack
Yes (Discord trains AI on content)
Microsoft Teams
—
Discord
—
Audio Sampling Rate(kHz)
Slack
48kHz premium
Microsoft Teams
—
Discord
—
Google Calendar Integration
Slack
No direct integration
Microsoft Teams
—
Discord
—
Average Daily Time Spent(minutes)
Slack
195 minutes
Microsoft Teams
—
Discord
—
Free Tier Group Video Call Duration Limit(minutes)
Slack
Unlimited
Microsoft Teams
—
Discord
—
Monthly Cost (Pro/Premium Plan)(USD)
Slack
$9.99
Microsoft Teams
—
Discord
—
Source Code Accessibility
Slack
Proprietary/Closed-source
Microsoft Teams
—
Discord
—
User Data Retention Control
Slack
Limited control; Discord retains indefinitely
Microsoft Teams
—
Discord
—
Auto-Delete Message Option
Slack
Not available
Microsoft Teams
—
Discord
—
Moderation Tools Sophistication(features)
Slack
Advanced (roles, automod, audit logs, permissions)
Microsoft Teams
—
Discord
—
Pros & Cons
15 pros·8 cons across both
Slack
Pros
- Industry-leading full-text search across all messages and files
- 2,000+ native integrations with third-party tools and custom workflows
- Intuitive channel-based organization with threads for focused conversations
- Robust API for custom automation and bot development
- Thread-based conversations reduce channel noise and clutter
Cons
- Higher pricing at $8.75/user/month for professional features compared to competitors
- Limited video conferencing (1-on-1 calls only, no group video in free tier)
Microsoft Teams
Pros
- Seamlessly integrated with Microsoft 365 apps (Word, Excel, SharePoint, OneDrive)
- Enterprise-grade security with advanced threat protection and compliance certifications
- Unlimited group video calls (up to 10,000 participants) included in most plans
- Desktop and mobile apps with offline functionality
- Lower cost if already subscribed to Microsoft 365 (Teams included)
Cons
- Steep learning curve with overwhelming feature set and UI complexity
- Message search functionality limited compared to Slack, struggles with large workspaces
- Fewer third-party integrations (500+ vs Slack's 2,000+)
Discord
Pros
- Completely free core platform with no mandatory subscription or per-user costs
- Superior voice call quality and low-latency audio optimized for gaming
- Intuitive, easy-to-learn interface requiring minimal onboarding
- Excellent voice channels for large communities with crystal-clear audio
- Highly customizable with extensive bot ecosystem for moderation and engagement
Cons
- Virtually no message search functionality, difficult to find past conversations
- Not designed for enterprise use; lacks compliance certifications and advanced security features
- Server/channel structure less suited for formal business documentation
Verdict
Choose Slack if you need the best message searchability, superior third-party integrations, and a dedicated collaboration platform built for professional workflows. Choose Teams if you're already invested in Microsoft 365, need enterprise-grade security, advanced meeting capabilities, and seamless Office document integration. Choose Discord if you're building a community, prioritize voice quality for gaming/creators, want zero startup costs, and value an intuitive, user-friendly experience over enterprise compliance features.
Frequently Asked Questions
5 questions
While Discord can technically be used for business, it lacks enterprise security certifications (HIPAA, FedRAMP), has no message search, and no compliance audit trails. It's best suited for informal teams, open-source projects, or communities rather than regulated industries or formal corporate communications.
Resources & Learn More
Curated sources to dive deeper
Where to Buy
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Wikipedia
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