software
Slack vs Teams 2026: Cost, Speed & Integration Compared
Microsoft Teams dominates enterprise integration with 300+ built-in connectors and tighter Office 365 bundling at $6/user/month, while Slack leads in user experience and messaging speed with 99.99% uptime and superior search functionality, commanding a 62% preference among knowledge workers who value communication over integration.
Microsoft Teams
Enterprise collaboration platform bundled with Microsoft 365 offering tight Office integration and cost efficiency.
Large enterprises already invested in Microsoft 365, financial services firms, government agencies, and organizations needing HIPAA/compliance-certified collaboration tools.
Score71%
VS
S
Slack
Modern messaging platform optimized for user experience and fast information retrieval with extensive app integrations.
Tech startups, creative agencies, distributed remote teams, and organizations prioritizing speed and UX over cost; companies not locked into Microsoft ecosystems.
Score71%
Quick Answer
AI SummaryMicrosoft Teams dominates enterprise integration with 300+ built-in connectors and tighter Office 365 bundling at $6/user/month, while Slack leads in user experience and messaging speed with 99.99% uptime and superior search functionality, commanding a 62% preference among knowledge workers who value communication over integration.
Our Verdict
AI-assistedChoose Microsoft Teams if your organization heavily uses Office 365/Microsoft 365, requires 300+ employee video calls, or prioritizes cost savings with bundled productivity suites—Teams integrates seamlessly at $6/user/month. Choose Slack if your team values fast message search, superior chat UX, or works in creative/tech industries where communication speed and intuitive workflows outweigh integration depth.
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Microsoft Teams
8.2/10
Slack
6.8/10
S
Choose Microsoft Teams if
Best pickLarge enterprises already invested in Microsoft 365, financial services firms, government agencies, and organizations needing HIPAA/compliance-certified collaboration tools.
S
Choose Slack if
Tech startups, creative agencies, distributed remote teams, and organizations prioritizing speed and UX over cost; companies not locked into Microsoft ecosystems.
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Key Differences at a Glance
- Price (per user/month):✓ Microsoft Teams wins($6.00 (Pro plan) vs $12.50 (Pro plan))
- Built-in third-party integrations:✓ Microsoft Teams wins(300+ native integrations vs 100+ native integrations)
- Message search speed:✓ Slack wins(1,200-1,500ms average response time vs <500ms average response time)
Key Facts & Figures
110 numeric metrics compared
| Metric | Microsoft Teams | Slack | Ratio |
|---|---|---|---|
| Daily Active Users(millions) | 320 million | ~38 Million | |
| App Integrations(count) | ~700 | 2,600+ | |
| Paid Starting Price(USD/user/mo) | Included with M365 | $7.25 | |
| Maximum Webinar Participants(participants) | 10,000 | — | — |
| Free Meeting Duration Limit(minutes) | 60 minutes | — | — |
| Maximum Free Breakout Rooms(rooms) | 50 rooms | — | — |
| Starting Paid Plan Cost(USD/month) | $6/month (Microsoft 365 bundle) | — | — |
| Standalone Monthly Pricing (Pro Tier)(USD per user per month) | $6.00 (with Microsoft 365 Business Basic) | $7.25 | |
| Annual Cost per User (Pro Tier)(USD) | $72 (bundled pricing) | $87 (billed yearly) | |
| Third-Party App Integrations(integrations) | 1,000+ | 2,400+ | |
| Video Meeting Capacity(participants) | Up to 10,000 | Up to 2,000 (with paid plan) | |
| Mobile App Feature Parity(%) | 85% | 95% | |
| Free Plan Monthly Cost(USD) | $6 (Teams Essentials) | — | — |
| Maximum Free Tier Group Meeting Duration(hours) | 24 hours | — | — |
| Free Tier Participant Limit(participants) | 100 participants | — | — |
| 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 | — | — |
| Video Quality Rating(%) | 7.9% positive | — | — |
| Maximum Meeting Participants(participants) | 1,000+ participants | — | — |
| Starting Monthly Price per User(USD) | $4.50 | — | — |
| Free Meeting Duration (3+ participants)(minutes) | 60 minutes | — | — |
| Real-Time Translation Languages(count) | 31 languages | — | — |
| 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 | — | — |
| Base Pricing (Monthly)(USD) | $7.00 (Business Basic 2026 price) | — | — |
| Maximum Video Meeting Participants(participants) | 300+ participants | — | — |
| Language Translation Support(languages) | 40+ languages (Teams Premium) | — | — |
| Registered Users Globally(millions) | 350+ million monthly active users | — | — |
| Monthly Active Users (MAU)(millions) | 320M | — | — |
| Free Plan Meeting Duration Limit(minutes) | 60 minutes (group calls) | — | — |
| Pro Plan Monthly Cost(USD per user) | $6.50 or free with Microsoft 365 | $8.75 | |
| Minimum Bandwidth for HD Video(Mbps) | 4.5 Mbps | — | — |
| Monthly Active Users (2024)(millions) | 320 million | — | — |
| Starting Price (Monthly)(USD) | $0 (Free) or $6 (Standard) | — | — |
| Native third-party integrations(count) | 500+ apps | 100+ | |
| Maximum Video Conference Participants(participants) | 10,000 participants | — | — |
| Paid Plan Starting Price(USD/user/month) | $6 | $7.25 | |
| Third-Party Integrations(count) | 500+ | 2000+ | |
| Max Video Conference Participants(people) | 10000 | 1000 | |
| Message History (Free Plan)(days) | unlimited | 90 | — |
| Voice Codec Quality Rating(score (1-10)) | 8 | 7.5 | |
| Enterprise Security Certifications(count) | SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery | SOC 2, HIPAA, FedRAMP, GDPR | |
| Time to Deploy(days) | 1-3 | 3-7 | |
| Uptime Guarantee(%) | 99.9% | 99.99% | |
| Video Conference Max Participants(participants) | 300 | 150 | |
| Free Tier File Storage(GB per user) | 100 GB per user | 1 GB shared workspace | |
| Message Search History (Free Tier)(days) | 90 days | 90 days | |
| Annual Subscription Cost (Pro, 100 users)(USD) | $7,800 or free with Microsoft 365 | $10,500 | |
| Desktop App Memory Usage(MB) | 450 MB | 280 MB | |
| Base Monthly Cost Per User(USD) | $8 | $8 | |
| Free Tier Meeting Participant Limit(participants) | Unlimited (Slack Huddles for video limited to 50 participants) | Unlimited (Slack Huddles for video limited to 50 participants) | |
| Asynchronous Communication Strength(scale 1-5) | 5 out of 5 (core feature with channels, threads, and history) | 5 out of 5 (core feature with channels, threads, and history) | |
| Google Workspace Integration Level | 2 out of 5 (available via integration, not native) | 2 out of 5 (available via integration, not native) | |
| AI Features Count (2026)(features) | 30+ (CRM tools, meeting summaries, automation, SlackBot enhancements) | 30+ (CRM tools, meeting summaries, automation, SlackBot enhancements) | |
| Base Monthly Cost Per User(USD) | $7.25 | $7.25 | |
| Business+ Tier Monthly Cost Per User(USD) | $12.50 | $12.50 | |
| Available Integrations(integrations) | 2000+ | 2000+ | |
| Price Stability (2024-2026)(months) | No increases for 33 months | No increases for 33 months | |
| Free Tier Cost(USD) | Free | Free | |
| Pro/Standard Monthly Cost(USD per user/month) | $7.25 | $7.25 | |
| Third-party Integrations(integrations) | 2000+ | 2000+ | |
| Minimum Monthly Cost Per User(USD) | $7.25 | $7.25 | |
| Third-Party Integrations Available(count) | 2,000+ | 2,000+ | |
| Years Price Stable (2026)(months) | 33+ months | 33+ months | |
| Native Integrations Available(count) | 2,200+ | 2,200+ | |
| Pro Plan Annual Cost(USD) | $150 (billed monthly) | $150 (billed monthly) | |
| Free Tier Message History Retention(days) | 90 days | 90 days | |
| AI Transcription Languages Supported(languages) | 0 (not native feature) | 0 (not native feature) | |
| Enterprise Uptime SLA(percent) | 99.99% | 99.99% | |
| User Workspace Limit (Free Tier)(workspaces) | 1 workspace | 1 workspace | |
| Maximum Meeting Participants (Free)(participants) | 3 participants | 3 participants | |
| Pro Plan Monthly Cost (Annual Billing)(USD per user) | $8.75 | $8.75 | |
| Available Integrations(count) | 2,000+ integrations | 2,000+ integrations | |
| Monthly Cost (Pro Plan)(USD) | $12.50 per user/month | $12.50 per user/month | |
| Free Message History(days) | 90 days maximum | 90 days maximum | |
| Voice Audio Codec Quality(kHz) | 16 kHz | 16 kHz | |
| Maximum Video Call Participants(people) | 15 participants | 15 participants | |
| Total Registered Users(millions) | 750 million | 750 million | |
| Enterprise Plan Monthly Cost Per User(USD) | $12.50 | $12.50 | |
| Free Plan Message History Retention(days) | 90 days | 90 days | |
| Third-Party Integrations Available(integrations) | 2,300+ integrations | 2,300+ integrations | |
| Cloud Storage (Base Plan)(GB) | 10 GB | 10 GB | |
| Monthly Cost Per User(USD) | $8-12.50 (Pro/Business+) | $8-12.50 (Pro/Business+) | |
| Active Workspaces(workspaces) | 750,000+ | 750,000+ | |
| Native Integrations(integrations) | 2,300+ | 2,300+ | |
| Message History Searchable(years) | 10 years standard | 10 years standard | |
| Workflow Automation Steps(built-in steps) | 50+ | 50+ | |
| Native App Integrations Available(count) | 2,400+ apps | 2,400+ apps | |
| Monthly Cost (Pro Plan, 50 users)(USD) | $412.50/month | $412.50/month | |
| Paid Workspaces/Users (Enterprise Adoption)(workspaces) | 750,000+ paid workspaces | 750,000+ paid workspaces | |
| Monthly Cost (10 Users, Annual)(USD) | $150/month ($1,800/year) | $150/month ($1,800/year) | |
| Pre-built Integrations(integrations) | 2,400+ integrations | 2,400+ integrations | |
| Message History on Free Plan(days) | 90-day limited access | 90-day limited access | |
| Active Global Workspaces/Deployments(count) | 750,000+ active workspaces | 750,000+ active workspaces | |
| Uptime SLA Guarantee(%) | 99.99% | 99.99% | |
| Price Per User Per Month (Pro/Standard)(USD) | $12.50/user (Pro plan) | $12.50/user (Pro plan) | |
| Base Monthly Cost (10-person team)(USD) | $80-150 | $80-150 | |
| Cost for 50-person team(USD/month) | $400-750 | $400-750 | |
| Real-time Messaging Speed(ms (message delivery latency)) | 50-100ms (instant) | 50-100ms (instant) | |
| File Storage Included(GB) | 5GB (free); unlimited (paid plan) | 5GB (free); unlimited (paid plan) | |
| Setup Time for New Team(hours) | 0.5-1 hour | 0.5-1 hour | |
| Monthly subscription cost (Pro plan)(USD per user) | $12.50 | $12.50 | |
| Message search response time(milliseconds) | <500ms | <500ms | |
| User interface satisfaction rating(out of 10) | 9.2/10 | 9.2/10 | |
| Maximum video call participants (free tier)(people) | 100 participants | 100 participants | |
| Service uptime SLA guarantee(percent) | 99.99% | 99.99% | |
| Message history retention (free plan)(days) | 90 days searchable | 90 days searchable | |
| Enterprise app marketplace size(applications) | 2,000+ apps (Slack App Directory) | 2,000+ apps (Slack App Directory) |
Sourced from publicly available data ·
Key Differences
7 attributes compared head-to-head
Microsoft Teams leads
S
3SlackMicrosoft Teams
Attribute
Slack
- $6.00 (Pro plan)(winner)Price (per user/month)$12.50 (Pro plan)
- 300+ native integrations(winner)Built-in third-party integrations100+ native integrations
- <500ms average response timeMessage search speed1,200-1,500ms average response time(winner)
- 9.2/10 (avg user rating)User interface intuitiveness7.8/10 (avg user rating)(winner)
- Up to 100 participants(winner)Video conferencing participants (free tier)Up to 300 participants
- 99.99% guaranteedUptime SLA99.9% guaranteed(winner)
- 90 days searchable(winner)Message retention (free plan)Unlimited searchable history
- Price (per user/month)
Microsoft Teams
$6.00 (Pro plan)(winner)
Slack
$12.50 (Pro plan)
- Built-in third-party integrations
Microsoft Teams
300+ native integrations(winner)
Slack
100+ native integrations
- Message search speed
Microsoft Teams
<500ms average response time
Slack
1,200-1,500ms average response time(winner)
- User interface intuitiveness
Microsoft Teams
9.2/10 (avg user rating)
Slack
7.8/10 (avg user rating)(winner)
- Video conferencing participants (free tier)
Microsoft Teams
Up to 100 participants(winner)
Slack
Up to 300 participants
- Uptime SLA
Microsoft Teams
99.99% guaranteed
Slack
99.9% guaranteed(winner)
- Message retention (free plan)
Microsoft Teams
90 days searchable(winner)
Slack
Unlimited searchable history
Full Comparison
| Attribute | Microsoft Teams | Slack |
|---|---|---|
| Daily Active Users(millions) | 320 million(winner) | ~38 Million |
| App Integrations(count) | ~700 | 2,600+(winner) |
| Native Microsoft Office Integration | Full (Word, Excel, PowerPoint, Outlook) | — |
| Native third-party integrations(count) | 500+ apps(winner) | 100+ |
| Google Workspace Native Integration | Limited (requires custom setup) | — |
| Available Integrations(count) | 2,000+ integrations | — |
| Paid Starting Price(USD/user/mo) | Included with M365 | $7.25(winner) |
| 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 Webinar Participants(participants) | 10,000 | — |
| Maximum Meeting Participants(participants) | 1,000+ participants | — |
| Users Per Workspace(count) | Unlimited | — |
| Maximum Free Breakout Rooms(rooms) | 50 rooms | — |
| Starting Paid Plan Cost(USD/month) | $6/month (Microsoft 365 bundle) | — |
| Standalone Monthly Pricing (Pro Tier)(USD per user per month) | $6.00 (with Microsoft 365 Business Basic)(winner) | $7.25 |
| Annual Cost per User (Pro Tier)(USD) | $72 (bundled pricing)(winner) | $87 (billed yearly) |
| Free Plan Monthly Cost(USD) | $6 (Teams Essentials) | — |
| Starting Monthly Price per User(USD) | $4.50 | — |
Show 25 more attributesBase Pricing (Monthly)(USD) $7.00 (Business Basic 2026 price) — Free Plan Meeting Duration Limit(minutes) 60 minutes (group calls) — Pro Plan Monthly Cost(USD per user) $6.50 or free with Microsoft 365 $8.75 Starting Price (Monthly)(USD) $0 (Free) or $6 (Standard) — Paid Plan Starting Price(USD/user/month) $6 $7.25 Annual Subscription Cost (Pro, 100 users)(USD) $7,800 or free with Microsoft 365 $10,500 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 — 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 — Enterprise Plan Monthly Cost Per User(USD) $12.50 — 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 — Monthly subscription cost (Pro plan)(USD per user) $12.50 — | ||
| AI Translation Languages (2026)(languages) | Limited translation features | — |
| AI Meeting Assistant Cost(USD/month) | Copilot Pro required ($20+ per tenant) | — |
| 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) | — |
| Third-Party App Integrations(integrations) | 1,000+ | 2,400+(winner) |
| Enterprise app marketplace size(applications) | 2,000+ apps (Slack App Directory) | — |
| Video Meeting Capacity(participants) | Up to 10,000(winner) | Up to 2,000 (with paid plan) |
| Native Office Integration | Native with SharePoint, OneDrive, Office Web Apps | Limited (third-party connectors) |
| AI Copilot Features | Microsoft Copilot Pro (enterprise AI, meeting insights) | Slack AI (summarization, search, assisted writing) |
| Maximum Free Tier Group Meeting Duration(hours) | 24 hours | — |
| AI Meeting Notes Availability | Premium only ($10/user/month) | — |
Show 27 more attributesAI 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 — Language Translation Support(languages) 40+ languages (Teams Premium) — Maximum Video Conference Participants(participants) 10,000 participants — AI Assistant Integration(capability) Copilot with GPT-4, speech-to-text, real-time translation — Max Video Conference Participants(people) 10000 1000 Message History (Free Plan)(days) unlimited 90 Video Conference Max Participants(participants) 300 150 Message Search History (Free Tier)(days) 90 days 90 days 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 — 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) — File Storage Included(GB) 5GB (free); unlimited (paid plan) — | ||
| Message Search Speed(seconds) | Good - improving with Copilot enhancements | Excellent - optimized search indexing |
| Minimum Bandwidth for HD Video(Mbps) | 4.5 Mbps | — |
| Desktop App Memory Usage(MB) | 450 MB | 280 MB(winner) |
| Voice Audio Codec Quality(kHz) | 16 kHz | — |
| Maximum Video Call Participants(people) | 15 participants | — |
Show 2 more attributesReal-time Messaging Speed(ms (message delivery latency)) 50-100ms (instant) — Message search response time(milliseconds) <500ms — | ||
| Mobile App Feature Parity(%) | 85% | 95%(winner) |
| Mobile App Type | Native iOS/Android with feature-parity | — |
| Free Tier Participant Limit(participants) | 100 participants | — |
| Microsoft 365 Integration Depth(Apps Integrated) | 8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI) | — |
| Third-party Integrations(integrations) | 2000+ | — |
| Native Integrations(integrations) | 2,300+ | — |
| 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 | — |
| Maximum Video Resolution(pixels) | 1080p @ 30fps | Requires 3rd party |
| 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 | — |
| Voice Chat Quality Rating(subjective score) | Excellent (optimized for reliability) | — |
| Voice Codec Quality Rating(score (1-10)) | 8(winner) | 7.5 |
| Video Resolution Support(maximum resolution) | 4K (3840x2160) | — |
| User Learning Curve(difficulty rating) | Steep (enterprise-focused interface) | — |
| Learning Curve(1-10 scale (1=easiest)) | 5 | 2(winner) |
| Registered Users Globally(millions) | 350+ million monthly active users | — |
| Monthly Active Users (MAU)(millions) | 320M | — |
| Active Workspaces(workspaces) | 750,000+ | — |
| Enterprise Security Compliance(certifications) | ISO 27001, SOC 2, HIPAA, GDPR | — |
| Enterprise Security Certifications(count) | SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery | SOC 2, HIPAA, FedRAMP, GDPR |
| 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 | — |
| Meeting Recording Retention (Free)(days) | Unlimited (OneDrive) | — |
| Free Tier File Storage(GB per user) | 100 GB per user(winner) | 1 GB shared workspace |
| Storage Per User (Standard Plan)(GB) | Variable by plan | — |
| Cloud Storage (Base Plan)(GB) | 10 GB | — |
| Message history retention (free plan)(days) | 90 days searchable | — |
| Supported Operating Systems(platforms) | Windows, Mac, iOS, Android, Web | — |
| Monthly Active Users (2024)(millions) | 320 million | — |
| Deployment Options | Cloud-only (SaaS) | — |
| Deployment Options | Cloud-based SaaS only | — |
| Source Code Availability | Proprietary (closed-source) | Proprietary/closed |
| Data Residency Control | Microsoft-managed regional datacenters (limited control) | — |
| FedRAMP Authorization(boolean) | No | — |
| HIPAA Compliance Certified | Yes (Business+ plan required) | — |
| Third-Party Integrations(count) | 500+ | 2000+(winner) |
| Available Integrations(integrations) | 2000+ | — |
| Native Integrations Available(count) | 2,200+ | — |
| Third-Party Integrations Available(integrations) | 2,300+ integrations | — |
| Time to Deploy(days) | 1-3(winner) | 3-7 |
| Uptime Guarantee(%) | 99.9% | 99.99%(winner) |
| Enterprise Uptime SLA(percent) | 99.99% | — |
| Uptime SLA Guarantee(%) | 99.99% | — |
| Service uptime SLA guarantee(percent) | 99.99% | — |
| Monthly Active Users(millions) | 320 million monthly active users(winner) | 750,000 paid customers |
| 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) | — |
| Maximum Meeting Participants(participants) | Unlimited group chats | — |
| 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 | — |
| Workflow Automation Complexity | Advanced with conditional logic | — |
| Open Source | No, proprietary | — |
| Maximum Video Length (Free Tier)(minutes) | N/A | — |
| Free Tier Message History Retention(days) | 90 days | — |
| 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 | — |
| SOC 2 Type II Certified | Yes | — |
| Custom Workflow Automation | Advanced (Workflow Builder, automations) | — |
| Total Registered Users(millions) | 750 million | — |
| Daily Posts Published (Organic)(millions) | N/A | — |
| Threading Model | Channel-based threads (contextual loss in active channels) | — |
| 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) | — |
| Paid Workspaces/Users (Enterprise Adoption)(workspaces) | 750,000+ paid workspaces | — |
| Active Global Workspaces/Deployments(count) | 750,000+ active workspaces | — |
| Pre-built Integrations(integrations) | 2,400+ integrations | — |
| Setup Time for New Team(hours) | 0.5-1 hour | — |
| User interface satisfaction rating(out of 10) | 9.2/10 | — |
| Maximum video call participants (free tier)(people) | 100 participants | — |
Microsoft TeamsSSlack
Daily Active Users(millions)
320 million
~38 Million
App Integrations(count)
~700
2,600+
Native Microsoft Office Integration
Full (Word, Excel, PowerPoint, Outlook)
—
Native third-party integrations(count)
500+ apps
100+
Google Workspace Native Integration
Limited (requires custom setup)
—
Available Integrations(count)
2,000+ integrations
—
Paid Starting Price(USD/user/mo)
Included with M365
$7.25
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 Webinar Participants(participants)
10,000
—
Maximum Meeting Participants(participants)
1,000+ participants
—
Users Per Workspace(count)
Unlimited
—
Maximum Free Breakout Rooms(rooms)
50 rooms
—
Starting Paid Plan Cost(USD/month)
$6/month (Microsoft 365 bundle)
—
Standalone Monthly Pricing (Pro Tier)(USD per user per month)
$6.00 (with Microsoft 365 Business Basic)
$7.25
Annual Cost per User (Pro Tier)(USD)
$72 (bundled pricing)
$87 (billed yearly)
Free Plan Monthly Cost(USD)
$6 (Teams Essentials)
—
Starting Monthly Price per User(USD)
$4.50
—
Show 25 more attributes
Base Pricing (Monthly)(USD)
$7.00 (Business Basic 2026 price)
—
Free Plan Meeting Duration Limit(minutes)
60 minutes (group calls)
—
Pro Plan Monthly Cost(USD per user)
$6.50 or free with Microsoft 365
$8.75
Starting Price (Monthly)(USD)
$0 (Free) or $6 (Standard)
—
Paid Plan Starting Price(USD/user/month)
$6
$7.25
Annual Subscription Cost (Pro, 100 users)(USD)
$7,800 or free with Microsoft 365
$10,500
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
—
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
—
Enterprise Plan Monthly Cost Per User(USD)
$12.50
—
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
—
Monthly subscription cost (Pro plan)(USD per user)
$12.50
—
AI Translation Languages (2026)(languages)
Limited translation features
—
AI Meeting Assistant Cost(USD/month)
Copilot Pro required ($20+ per tenant)
—
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)
—
Third-Party App Integrations(integrations)
1,000+
2,400+
Enterprise app marketplace size(applications)
2,000+ apps (Slack App Directory)
—
Video Meeting Capacity(participants)
Up to 10,000
Up to 2,000 (with paid plan)
Native Office Integration
Native with SharePoint, OneDrive, Office Web Apps
Limited (third-party connectors)
AI Copilot Features
Microsoft Copilot Pro (enterprise AI, meeting insights)
Slack AI (summarization, search, assisted writing)
Maximum Free Tier Group Meeting Duration(hours)
24 hours
—
AI Meeting Notes Availability
Premium only ($10/user/month)
—
Show 27 more attributes
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
—
Language Translation Support(languages)
40+ languages (Teams Premium)
—
Maximum Video Conference Participants(participants)
10,000 participants
—
AI Assistant Integration(capability)
Copilot with GPT-4, speech-to-text, real-time translation
—
Max Video Conference Participants(people)
10000
1000
Message History (Free Plan)(days)
unlimited
90
Video Conference Max Participants(participants)
300
150
Message Search History (Free Tier)(days)
90 days
90 days
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
—
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)
—
File Storage Included(GB)
5GB (free); unlimited (paid plan)
—
Message Search Speed(seconds)
Good - improving with Copilot enhancements
Excellent - optimized search indexing
Minimum Bandwidth for HD Video(Mbps)
4.5 Mbps
—
Desktop App Memory Usage(MB)
450 MB
280 MB
Voice Audio Codec Quality(kHz)
16 kHz
—
Maximum Video Call Participants(people)
15 participants
—
Show 2 more attributes
Real-time Messaging Speed(ms (message delivery latency))
50-100ms (instant)
—
Message search response time(milliseconds)
<500ms
—
Mobile App Feature Parity(%)
85%
95%
Mobile App Type
Native iOS/Android with feature-parity
—
Free Tier Participant Limit(participants)
100 participants
—
Microsoft 365 Integration Depth(Apps Integrated)
8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)
—
Third-party Integrations(integrations)
2000+
—
Native Integrations(integrations)
2,300+
—
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
—
Maximum Video Resolution(pixels)
1080p @ 30fps
Requires 3rd party
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
—
Voice Chat Quality Rating(subjective score)
Excellent (optimized for reliability)
—
Voice Codec Quality Rating(score (1-10))
8
7.5
Video Resolution Support(maximum resolution)
4K (3840x2160)
—
User Learning Curve(difficulty rating)
Steep (enterprise-focused interface)
—
Learning Curve(1-10 scale (1=easiest))
5
2
Registered Users Globally(millions)
350+ million monthly active users
—
Monthly Active Users (MAU)(millions)
320M
—
Active Workspaces(workspaces)
750,000+
—
Enterprise Security Compliance(certifications)
ISO 27001, SOC 2, HIPAA, GDPR
—
Enterprise Security Certifications(count)
SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery
SOC 2, HIPAA, FedRAMP, GDPR
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
—
Meeting Recording Retention (Free)(days)
Unlimited (OneDrive)
—
Free Tier File Storage(GB per user)
100 GB per user
1 GB shared workspace
Storage Per User (Standard Plan)(GB)
Variable by plan
—
Cloud Storage (Base Plan)(GB)
10 GB
—
Message history retention (free plan)(days)
90 days searchable
—
Supported Operating Systems(platforms)
Windows, Mac, iOS, Android, Web
—
Monthly Active Users (2024)(millions)
320 million
—
Deployment Options
Cloud-only (SaaS)
—
Deployment Options
Cloud-based SaaS only
—
Source Code Availability
Proprietary (closed-source)
Proprietary/closed
Data Residency Control
Microsoft-managed regional datacenters (limited control)
—
FedRAMP Authorization(boolean)
No
—
HIPAA Compliance Certified
Yes (Business+ plan required)
—
Third-Party Integrations(count)
500+
2000+
Available Integrations(integrations)
2000+
—
Native Integrations Available(count)
2,200+
—
Third-Party Integrations Available(integrations)
2,300+ integrations
—
Time to Deploy(days)
1-3
3-7
Uptime Guarantee(%)
99.9%
99.99%
Enterprise Uptime SLA(percent)
99.99%
—
Uptime SLA Guarantee(%)
99.99%
—
Service uptime SLA guarantee(percent)
99.99%
—
Monthly Active Users(millions)
320 million monthly active users
750,000 paid customers
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)
—
Maximum Meeting Participants(participants)
Unlimited group chats
—
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
—
Workflow Automation Complexity
Advanced with conditional logic
—
Open Source
No, proprietary
—
Maximum Video Length (Free Tier)(minutes)
N/A
—
Free Tier Message History Retention(days)
90 days
—
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
—
SOC 2 Type II Certified
Yes
—
Custom Workflow Automation
Advanced (Workflow Builder, automations)
—
Total Registered Users(millions)
750 million
—
Daily Posts Published (Organic)(millions)
N/A
—
Threading Model
Channel-based threads (contextual loss in active channels)
—
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)
—
Paid Workspaces/Users (Enterprise Adoption)(workspaces)
750,000+ paid workspaces
—
Active Global Workspaces/Deployments(count)
750,000+ active workspaces
—
Pre-built Integrations(integrations)
2,400+ integrations
—
Setup Time for New Team(hours)
0.5-1 hour
—
User interface satisfaction rating(out of 10)
9.2/10
—
Maximum video call participants (free tier)(people)
100 participants
—
Pros & Cons
10 pros·4 cons across both
S
Microsoft Teams
+5-2
Pros
- 60% lower cost at $6/user/month when bundled with Office 365
- 300+ native third-party integrations (Salesforce, ServiceNow, Jira, etc.)
- Seamless synchronization with Excel, Word, and SharePoint documents
- Up to 300 participants on free tier video calls
- Integrated audio/video with Teams Phone System for PSTN connectivity
Cons
- 1,200-1,500ms message search latency creates noticeable delays
- UI complexity and cluttered navigation compared to competitors; steep learning curve for non-Microsoft users
S
Slack
+5-2
Pros
- 99.99% guaranteed uptime with <500ms average message search response time
- 9.2/10 user satisfaction rating—cleanest, most intuitive interface in category
- Threaded conversations prevent message chaos in high-volume channels
- 100+ native integrations plus 2,000+ apps via Slack App Directory
- Superior full-text search indexed across all message history (Pro+)
Cons
- 2x price of Teams Pro plan at $12.50/user/month, no bundling discounts
- Limited to 100 participants on free video calls; requires phone system add-ons for PSTN calling
Frequently Asked Questions
5 questions
Microsoft Teams is dramatically cheaper—at $6/user/month when bundled with Microsoft 365 Enterprise E3/E5, it costs 50% less than Slack's $12.50/month Pro plan. A 500-person company saves $39,000/year choosing Teams. However, standalone Teams (without Office) costs $11/user/month, narrowing the gap.
Resources & Learn More
Curated sources to dive deeper
Where to Buy
As an affiliate, we may earn a commission from qualifying purchases at no extra cost to you. Learn more about our affiliate disclosure
Wikipedia
- W
Microsoft Teams on Wikipedia (opens in new tab)
Enterprise collaboration platform bundled with Microsoft 365 offering tight Office integration and cost efficiency.
- W
Slack on Wikipedia (opens in new tab)
Modern messaging platform optimized for user experience and fast information retrieval with extensive app integrations.
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