slack vs teams vs discord
Slack
Premium team communication platform designed for enterprise workflows and integrations.
Mid-to-large enterprises, tech companies, and teams requiring deep integrations and professional collaboration
Microsoft Teams
Unified workplace collaboration platform integrating chat, meetings, and Office 365 applications
Organizations already using Microsoft 365, enterprises requiring tight compliance, and companies needing integrated productivity and communication
Discord
Community-driven platform excelling at real-time voice, text, and video communication.
Gaming communities, open-source projects, creative communities, startups with tight budgets, and organizations prioritizing voice quality
Quick Answer
Slack is a premium team communication platform optimized for enterprise workflows with rich integrations, Teams is Microsoft's integrated suite bundling chat with Office 365 productivity tools, and Discord is a community-focused platform excelling at real-time voice and text communication for gaming and creative communities. Each serves distinct use cases: enterprise professionalism, enterprise bundling, and community engagement respectively.
Full Comparison
| Attribute | Slack | Microsoft Teams | Discord |
|---|---|---|---|
| Daily Active Users(millions) | ~38 Million | 320 million | — |
| Monthly Active Users(millions) | ~750 (registered) | ~380 | ~150 |
| App Integrations(count) | 2,600+ | ~700 | — |
| Google Workspace Native Integration | Limited (requires custom setup) | — | — |
| Native Microsoft Office Integration | Full (Word, Excel, PowerPoint, Outlook) | — | — |
| Paid Starting Price(USD/user/mo) | $7.25 | Included with M365 | — |
| Standalone Monthly Pricing (Pro Tier)(USD per user per month) | $7.25 | $6.00 (with Microsoft 365 Business Basic) | — |
| Annual Cost per User (Pro Tier)(USD) | $87 (billed yearly) | $72 (bundled pricing) | — |
| Base Monthly Cost Per User(USD) | $8 | — | — |
| 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) | — | — |
| Pro Plan Monthly Cost (Annual Billing)(USD per user) | $8.75 | — | — |
| Monthly Cost (Pro Plan)(USD) | $12.50 per user/month | $9.99 per server/month | — |
| Enterprise Plan Monthly Cost Per User(USD) | $12.50 | — | — |
| Paid Plan Starting Price(USD/user/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 | — | — |
| 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) | — |
| Free Plan Meeting Duration Limit(minutes) | 60 minutes (group calls) | — | — |
| Starting Price (Monthly)(USD per user) | $0 (Free) or $6 (Standard) | — | — |
| 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 | — | — |
| Third-Party App Integrations(integrations) | 2,000+ | 800+ | — |
| Available Integrations(integrations) | 2000+ | — | — |
| Pre-built Integrations(count) | 2,400+ integrations | — | — |
| Native Third-Party Integrations(count) | 500+ apps | — | — |
| Video Meeting Capacity(participants) | Up to 2,000 (with paid plan) | Up to 10,000 | — |
| 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) | — |
| 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 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 | — | — |
| Native Integrations(count) | 2,300+ | — | — |
| 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) | — | — |
| File Storage Included(GB) | 5GB (free); unlimited (paid plan) | — | — |
| Max Video Conference Participants(people) | 1000 | 10000 | 50 |
| Message History (Free Plan)(days) | 90 | unlimited | unlimited |
| 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 | 25 participants | — |
| Language Translation Support(languages) | 40+ languages (Teams Premium) | 0 (no native support) | — |
| Maximum Video Conference Participants(participants) | 10,000 participants | — | — |
| AI Assistant Integration(capability) | Copilot with GPT-4, speech-to-text, real-time translation | — | — |
| Video Meeting Notes with AI | No | — | — |
| Calendar Integration | No native calendar integration | — | — |
| 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 | — | — |
| Message Search Speed(seconds) | Excellent - optimized search indexing | Good - improving with Copilot enhancements | 0.1-0.3 seconds |
| Voice Audio Codec Quality(kHz) | 16 kHz | 48 kHz | — |
| Maximum Video Call Participants(people) | 15 participants | 50+ participants | — |
| Real-time Messaging Speed(ms (message delivery latency)) | 50-100ms (instant) | — | — |
| Minimum Bandwidth for HD Video(Mbps) | 4.5 Mbps | — | — |
| Audio Latency(milliseconds) | 50-100ms with spatial audio | — | — |
| Mobile App Size (iOS)(MB) | ~150 MB | — | — |
| Voice Chat Bitrate(kbps) | 128 kbps optimized | — | — |
| Voice Latency(milliseconds) | 40-50ms | — | — |
| Mobile App Feature Parity(%) | 95% | 85% | — |
| Mobile App Type | Native iOS/Android with feature-parity | — | — |
| 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) | — | — |
| Deployment Options | Cloud-based SaaS only | — | — |
| GDPR & Data Sovereignty Compliance | Compliant but data on Salesforce servers | — | — |
| End-to-End Encryption Available | DMs only, Enterprise+ plan | — | — |
| End-to-End Encryption Default | Not available | — | — |
| Enterprise Security Certifications(count) | SOC 2, HIPAA, FedRAMP, GDPR | SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery | Encryption, limited certifications |
| Enterprise Security Compliance(certifications) | ISO 27001, SOC 2, HIPAA, GDPR | SOC 2, GDPR (limited enterprise focus) | — |
| Enterprise SSO Support(null) | Limited/Third-party only | — | — |
| SOC 2 Compliance(text) | Yes, SOC 2 Type II | — | — |
| End-to-End Encryption | Not available for group chats | — | — |
| Default End-to-End Encryption | No (opt-in only) | — | — |
| Maximum Meeting Participants(participants) | Unlimited group chats | Up to 50 (voice channel) | — |
| Available Integrations(count) | 2,000+ integrations | — | — |
| Third-party Integrations(integrations) | 2000+ | — | — |
| Native Integrations Available(count) | 2,200+ | — | — |
| Third-Party Integrations Available(count) | 2,300+ integrations | — | — |
| Microsoft 365 Integration Depth(Apps Integrated) | 8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI) | — | — |
| 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 Translation Languages (2026)(languages) | Limited translation features | — | — |
| AI Meeting Assistant Cost(USD/month) | Copilot Pro required ($20+ per tenant) | — | — |
| Workflow Automation Complexity | Advanced with conditional logic | — | — |
| Storage Per User (Standard Plan)(GB) | Variable by plan | — | — |
| Cloud Storage (Base Plan)(GB) | 10 GB | — | — |
| Meeting Recording Retention (Free)(days) | Unlimited (OneDrive) | — | — |
| Open Source | No, proprietary | — | — |
| Maximum Video Length (Free Tier)(minutes) | N/A | — | — |
| Maximum Video Resolution(pixels) | Requires 3rd party | 1080p @ 30fps | 720p @ 60fps |
| Maximum Video Sharing Quality(fps at resolution) | 4K at 30fps | — | — |
| Free Tier Message History Retention(days) | 90 days | — | — |
| Message History Retention (Free Plan)(days) | 90 days (10,000 message limit) | — | — |
| Enterprise Uptime SLA(percent) | 99.99% | — | — |
| Uptime SLA Guarantee(%) | 99.99% | — | — |
| Uptime Guarantee(percentage) | 99.99% | 99.9% | 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) | — | — |
| Free Plan Message History(months) | 90 days | — | — |
| Pro Plan Monthly Cost(USD) | $6-16 (varies by region/bundle) | — | — |
| FedRAMP Authorization(availability) | No | — | — |
| Data Residency Control | Microsoft-managed regional datacenters (limited control) | — | — |
| Third-Party Integrations(count) | 2000+ | 500+ | 400+ |
| SOC 2 Type II Certified | Yes | No | — |
| HIPAA Compliance Certified | Yes (Business+ plan required) | — | — |
| Custom Workflow Automation | Advanced (Workflow Builder, automations) | Basic (bots only) | — |
| Users Per Workspace(count) | Unlimited | Unlimited | — |
| Maximum Webinar Participants(participants) | 10,000 | — | — |
| Maximum Meeting Participants(participants) | 1,000+ participants | — | — |
| Total Registered Users(millions) | 750 million | — | — |
| Daily Posts Published (Organic)(millions) | N/A | — | — |
| Active Workspaces(workspaces) | 750,000+ | — | — |
| Registered Users Globally(millions) | 350+ million monthly active users | 500+ million registered users | — |
| Monthly Active Users (MAU)(millions) | 320M | — | — |
| Threading Model | Channel-based threads (contextual loss in active channels) | — | — |
| Deployment Options(count) | Cloud-only (SaaS) | — | — |
| Open Source | Proprietary (closed-source) | — | — |
| Native Video/Audio Calls | Yes (Slack Huddles) | — | — |
| Native App Integrations Available(count) | 2,400+ apps | — | — |
| Self-Hosting Capability | No, cloud-only | — | — |
| Self-Hosted/On-Premises Option | No (cloud-only) | — | — |
| Self-Hosting Option(yes/no) | No | — | — |
| Paid Workspaces/Users (Enterprise Adoption)(workspaces) | 750,000+ paid workspaces | — | — |
| Active Global Workspaces/Deployments(count) | 750,000+ active workspaces | — | — |
| Source Code Availability(null) | Proprietary/closed | Proprietary (closed-source) | Proprietary/Closed |
| Setup Time for New Team(hours) | 0.5-1 hour | — | — |
| 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) | — |
| Time to Deploy(days) | 3-7 | 1-3 | 1 |
| Learning Curve(1-10 scale (1=easiest)) | 2 | 5 | 1.5 |
| User Learning Curve(difficulty rating) | Steep (enterprise-focused interface) | Minimal (intuitive design) | — |
| Free Cloud Recording Capability | No, paid only | — | — |
| Free Meeting Duration Limit(minutes) | 60 minutes | — | — |
| Office 365 Native Integration | Full native integration | — | — |
| Browser Join Without App | Often requires app/account | — | — |
| Maximum Free Breakout Rooms(rooms) | 50 rooms | — | — |
| Free Tier Participant Limit(participants) | 100 participants | Unlimited | — |
| Free Tier Video Call Duration(minutes) | 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) | — | — |
| Enterprise Deployment Adoption (500+ seat orgs)(percentage) | 67% of deployments | — | — |
| 3-Year TCO Advantage for 1,000 Users with M365(percentage savings) | 47% lower cost | — | — |
| Video Resolution Support(maximum resolution) | 4K (3840x2160) | 1080p (1920x1080) | — |
| Supported Operating Systems | Windows, Mac, iOS, Android, Web | — | — |
| Monthly Active Users (2024)(millions) | 320 million | — | — |
| Free Audio Quality(kbps) | 128 kbps | — | — |
| Developer API for Integrations | Comprehensive API with bot framework (GDC 2026) | — | — |
| Bot/Integration Ecosystem Size(available bots) | 10,000+ bots | — | — |
| 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) | — | — |
Daily Active Users(millions)
Slack
~38 Million
Microsoft Teams
320 million
Discord
—
Monthly Active Users(millions)
Slack
~750 (registered)
Microsoft Teams
~380
Discord
~150
App Integrations(count)
Slack
2,600+
Microsoft Teams
~700
Discord
—
Google Workspace Native Integration
Slack
Limited (requires custom setup)
Microsoft Teams
—
Discord
—
Native Microsoft Office Integration
Slack
Full (Word, Excel, PowerPoint, Outlook)
Microsoft Teams
—
Discord
—
Paid Starting Price(USD/user/mo)
Slack
$7.25
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)
Discord
—
Annual Cost per User (Pro Tier)(USD)
Slack
$87 (billed yearly)
Microsoft Teams
$72 (bundled pricing)
Discord
—
Base Monthly Cost Per User(USD)
Slack
$8
Microsoft Teams
—
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
—
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
$9.99 per server/month
Discord
—
Enterprise Plan Monthly Cost Per User(USD)
Slack
$12.50
Microsoft Teams
—
Discord
—
Paid Plan Starting Price(USD/user/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
—
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)
Discord
—
Free Plan Meeting Duration Limit(minutes)
Slack
60 minutes (group calls)
Microsoft Teams
—
Discord
—
Starting Price (Monthly)(USD per user)
Slack
$0 (Free) or $6 (Standard)
Microsoft Teams
—
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
—
Third-Party App Integrations(integrations)
Slack
2,000+
Microsoft Teams
800+
Discord
—
Available Integrations(integrations)
Slack
2000+
Microsoft Teams
—
Discord
—
Pre-built Integrations(count)
Slack
2,400+ integrations
Microsoft Teams
—
Discord
—
Native Third-Party Integrations(count)
Slack
500+ apps
Microsoft Teams
—
Discord
—
Video Meeting Capacity(participants)
Slack
Up to 2,000 (with paid plan)
Microsoft Teams
Up to 10,000
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
—
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 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
—
Native Integrations(count)
Slack
2,300+
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
—
File Storage Included(GB)
Slack
5GB (free); unlimited (paid plan)
Microsoft Teams
—
Discord
—
Max Video Conference Participants(people)
Slack
1000
Microsoft Teams
10000
Discord
50
Message History (Free Plan)(days)
Slack
90
Microsoft Teams
unlimited
Discord
unlimited
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
Microsoft Teams
25 participants
Discord
—
Language Translation Support(languages)
Slack
40+ languages (Teams Premium)
Microsoft Teams
0 (no native support)
Discord
—
Maximum Video Conference Participants(participants)
Slack
10,000 participants
Microsoft Teams
—
Discord
—
AI Assistant Integration(capability)
Slack
Copilot with GPT-4, speech-to-text, real-time translation
Microsoft Teams
—
Discord
—
Video Meeting Notes with AI
Slack
No
Microsoft Teams
—
Discord
—
Calendar Integration
Slack
No native calendar integration
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
—
Message Search Speed(seconds)
Slack
Excellent - optimized search indexing
Microsoft Teams
Good - improving with Copilot enhancements
Discord
0.1-0.3 seconds
Voice Audio Codec Quality(kHz)
Slack
16 kHz
Microsoft Teams
48 kHz
Discord
—
Maximum Video Call Participants(people)
Slack
15 participants
Microsoft Teams
50+ participants
Discord
—
Real-time Messaging Speed(ms (message delivery latency))
Slack
50-100ms (instant)
Microsoft Teams
—
Discord
—
Minimum Bandwidth for HD Video(Mbps)
Slack
4.5 Mbps
Microsoft Teams
—
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
—
Voice Latency(milliseconds)
Slack
40-50ms
Microsoft Teams
—
Discord
—
Mobile App Feature Parity(%)
Slack
95%
Microsoft Teams
85%
Discord
—
Mobile App Type
Slack
Native iOS/Android with feature-parity
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
—
Deployment Options
Slack
Cloud-based SaaS only
Microsoft Teams
—
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
—
End-to-End Encryption Default
Slack
Not available
Microsoft Teams
—
Discord
—
Enterprise Security Certifications(count)
Slack
SOC 2, HIPAA, FedRAMP, GDPR
Microsoft Teams
SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery
Discord
Encryption, limited certifications
Enterprise Security Compliance(certifications)
Slack
ISO 27001, SOC 2, HIPAA, GDPR
Microsoft Teams
SOC 2, GDPR (limited enterprise focus)
Discord
—
Enterprise SSO Support(null)
Slack
Limited/Third-party only
Microsoft Teams
—
Discord
—
SOC 2 Compliance(text)
Slack
Yes, SOC 2 Type II
Microsoft Teams
—
Discord
—
End-to-End Encryption
Slack
Not available for group chats
Microsoft Teams
—
Discord
—
Default End-to-End Encryption
Slack
No (opt-in only)
Microsoft Teams
—
Discord
—
Maximum Meeting Participants(participants)
Slack
Unlimited group chats
Microsoft Teams
Up to 50 (voice channel)
Discord
—
Available Integrations(count)
Slack
2,000+ integrations
Microsoft Teams
—
Discord
—
Third-party Integrations(integrations)
Slack
2000+
Microsoft Teams
—
Discord
—
Native Integrations Available(count)
Slack
2,200+
Microsoft Teams
—
Discord
—
Third-Party Integrations Available(count)
Slack
2,300+ integrations
Microsoft Teams
—
Discord
—
Microsoft 365 Integration Depth(Apps Integrated)
Slack
8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)
Microsoft Teams
—
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 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
—
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
—
Meeting Recording Retention (Free)(days)
Slack
Unlimited (OneDrive)
Microsoft Teams
—
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 @ 30fps
Discord
720p @ 60fps
Maximum Video Sharing Quality(fps at resolution)
Slack
4K at 30fps
Microsoft Teams
—
Discord
—
Free Tier Message History Retention(days)
Slack
90 days
Microsoft Teams
—
Discord
—
Message History Retention (Free Plan)(days)
Slack
90 days (10,000 message limit)
Microsoft Teams
—
Discord
—
Enterprise Uptime SLA(percent)
Slack
99.99%
Microsoft Teams
—
Discord
—
Uptime SLA Guarantee(%)
Slack
99.99%
Microsoft Teams
—
Discord
—
Uptime Guarantee(percentage)
Slack
99.99%
Microsoft Teams
99.9%
Discord
99.99%
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
—
Free Plan Message History(months)
Slack
90 days
Microsoft Teams
—
Discord
—
Pro Plan Monthly Cost(USD)
Slack
$6-16 (varies by region/bundle)
Microsoft Teams
—
Discord
—
FedRAMP Authorization(availability)
Slack
No
Microsoft Teams
—
Discord
—
Data Residency Control
Slack
Microsoft-managed regional datacenters (limited control)
Microsoft Teams
—
Discord
—
Third-Party Integrations(count)
Slack
2000+
Microsoft Teams
500+
Discord
400+
SOC 2 Type II Certified
Slack
Yes
Microsoft Teams
No
Discord
—
HIPAA Compliance Certified
Slack
Yes (Business+ plan required)
Microsoft Teams
—
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 Meeting Participants(participants)
Slack
1,000+ participants
Microsoft Teams
—
Discord
—
Total Registered Users(millions)
Slack
750 million
Microsoft Teams
—
Discord
—
Daily Posts Published (Organic)(millions)
Slack
N/A
Microsoft Teams
—
Discord
—
Active Workspaces(workspaces)
Slack
750,000+
Microsoft Teams
—
Discord
—
Registered Users Globally(millions)
Slack
350+ million monthly active users
Microsoft Teams
500+ million registered users
Discord
—
Monthly Active Users (MAU)(millions)
Slack
320M
Microsoft Teams
—
Discord
—
Threading Model
Slack
Channel-based threads (contextual loss in active channels)
Microsoft Teams
—
Discord
—
Deployment Options(count)
Slack
Cloud-only (SaaS)
Microsoft Teams
—
Discord
—
Open Source
Slack
Proprietary (closed-source)
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
—
Self-Hosting Capability
Slack
No, cloud-only
Microsoft Teams
—
Discord
—
Self-Hosted/On-Premises Option
Slack
No (cloud-only)
Microsoft Teams
—
Discord
—
Self-Hosting Option(yes/no)
Slack
No
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
—
Source Code Availability(null)
Slack
Proprietary/closed
Microsoft Teams
Proprietary (closed-source)
Discord
Proprietary/Closed
Setup Time for New Team(hours)
Slack
0.5-1 hour
Microsoft Teams
—
Discord
—
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
—
Time to Deploy(days)
Slack
3-7
Microsoft Teams
1-3
Discord
1
Learning Curve(1-10 scale (1=easiest))
Slack
2
Microsoft Teams
5
Discord
1.5
User Learning Curve(difficulty rating)
Slack
Steep (enterprise-focused interface)
Microsoft Teams
Minimal (intuitive design)
Discord
—
Free Cloud Recording Capability
Slack
No, paid only
Microsoft Teams
—
Discord
—
Free Meeting Duration Limit(minutes)
Slack
60 minutes
Microsoft Teams
—
Discord
—
Office 365 Native Integration
Slack
Full native integration
Microsoft Teams
—
Discord
—
Browser Join Without App
Slack
Often requires app/account
Microsoft Teams
—
Discord
—
Maximum Free Breakout Rooms(rooms)
Slack
50 rooms
Microsoft Teams
—
Discord
—
Free Tier Participant Limit(participants)
Slack
100 participants
Microsoft Teams
Unlimited
Discord
—
Free Tier Video Call Duration(minutes)
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
—
Enterprise Deployment Adoption (500+ seat orgs)(percentage)
Slack
67% of deployments
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
—
Supported Operating Systems
Slack
Windows, Mac, iOS, Android, Web
Microsoft Teams
—
Discord
—
Monthly Active Users (2024)(millions)
Slack
320 million
Microsoft Teams
—
Discord
—
Free Audio Quality(kbps)
Slack
128 kbps
Microsoft Teams
—
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
—
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
—
Pros & Cons
15 pros·10 cons across both
Slack
Pros
- Unmatched search and message history across unlimited paid plans
- Largest third-party integration marketplace with 2,000+ apps
- Superior user interface with intuitive channel organization and threading
- Best-in-class notification management to reduce alert fatigue
- Strong SOC 2 Type II and regulatory compliance certifications
Cons
- Expensive per-user costs, especially for growing teams
- Free plan severely limited to 90-day message history
- Moderate video conferencing capabilities compared to dedicated tools
Microsoft Teams
Pros
- Native integration with Outlook, SharePoint, OneDrive, and Office apps
- Premium HD video conferencing with Teams Meet supporting up to 10,000 participants
- Cost-effective when bundled with existing Microsoft 365 subscriptions
- Advanced security with Data Loss Prevention (DLP) and eDiscovery capabilities
- Seamless calendar and meeting scheduling through Outlook integration
Cons
- Interface can feel cluttered and overwhelming for new users
- Less robust third-party ecosystem compared to Slack
- Requires Microsoft 365 investment for full feature value
Discord
Pros
- Completely free with unlimited message history and participants
- Superior low-latency voice codec and crystal-clear audio quality
- Server-based channel structure perfect for community organization
- Excellent for gaming with built-in streaming, game integration, and low-latency performance
- Nitro subscription offers cosmetics and features without limiting core functionality
Cons
- Fewer enterprise-grade security certifications and compliance options
- Limited business integrations compared to Slack and Teams
- Can feel informal or less professional for corporate settings
- Moderation tools less mature than enterprise platforms
Verdict
Choose Slack if your team prioritizes best-in-class communication tools, extensive third-party integrations, and is willing to pay premium pricing for superior search and workflow flexibility. Choose Teams if you're already invested in the Microsoft 365 ecosystem and need a unified suite combining chat, video conferencing, calendar, and document collaboration without additional software costs. Choose Discord if you're building a community, prioritize crystal-clear voice communication, want free unlimited features, and your team includes gamers or creative professionals who value real-time interaction and server-based channels over formal enterprise workflows.
Frequently Asked Questions
5 questions
Message migration between platforms is challenging because each stores data differently. Third-party tools like Slack export can capture message history, but you'll lose threading context and custom emojis. Most teams gradually transition users rather than attempting bulk migration.
Slack and Teams both excel for remote work, but Slack edges ahead for pure communication while Teams wins if you need integrated video conferencing and document collaboration. Discord works well for remote teams prioritizing voice chat and community feel over formal workflows.
Slack's 90-day free history limit forces upgrades quickly. Teams requires Microsoft 365 subscription ($6-22/month minimum). Discord's Nitro ($9.99/year) is entirely optional. For enterprise, Slack and Teams require security/compliance add-ons; Discord offers minimal compliance certifications.
All three offer robust mobile apps. Slack's mobile app mirrors desktop closely with excellent search. Teams excels at meeting integration. Discord's mobile app is optimized for gaming and community engagement with minimal lag. Choice depends on your primary use case.
Yes, but limited compliance certifications make Discord risky for regulated industries (healthcare, finance). Some creative agencies and tech startups use Discord successfully by implementing their own security controls. Slack and Teams remain safer enterprise choices.
Resources & Learn More
Dive deeper with these curated resources
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