software
Teams vs Mattermost 2026: Cost & Integration Comparison
Microsoft Teams is a cloud-based enterprise collaboration platform with 300+ million users and deep Office 365 integration, while Mattermost is an open-source, self-hosted alternative offering greater control and privacy for organizations avoiding vendor lock-in.
Microsoft Teams
Cloud-based unified communications platform integrated with Microsoft 365 ecosystem
Organizations heavily invested in Microsoft 365, enterprises requiring compliance automation, and teams needing seamless Office document collaboration
Score63%
VS
M
Mattermost
Open-source, self-hosted team collaboration platform with enterprise security controls
Healthcare/finance organizations requiring data sovereignty, security-conscious teams avoiding cloud vendors, open-source advocates, and cost-sensitive enterprises
Score63%
Quick Answer
AI SummaryMicrosoft Teams is a cloud-based enterprise collaboration platform with 300+ million users and deep Office 365 integration, while Mattermost is an open-source, self-hosted alternative offering greater control and privacy for organizations avoiding vendor lock-in.
Our Verdict
AI-assistedChoose Microsoft Teams if your organization uses Office 365/Microsoft 365, requires maximum integration with enterprise tools, and prioritizes ease of deployment and vendor support. Choose Mattermost if you need self-hosted control, open-source transparency, HIPAA/FedRAMP compliance requirements, or want to avoid vendor lock-in and reduce per-user licensing costs.
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Microsoft Teams
7.5/10
Mattermost
7.5/10
M
TIE — neck and neck
Choose Microsoft Teams if
Organizations heavily invested in Microsoft 365, enterprises requiring compliance automation, and teams needing seamless Office document collaboration
M
Choose Mattermost if
Healthcare/finance organizations requiring data sovereignty, security-conscious teams avoiding cloud vendors, open-source advocates, and cost-sensitive enterprises
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Key Differences at a Glance
- Deployment Model:✓ Mattermost wins(Self-hosted or cloud vs Cloud-only (SaaS))
- Source Code Access:✓ Mattermost wins(Open-source (AGPL v3) vs Proprietary, closed-source)
- Active Monthly Users:✓ Microsoft Teams wins(300+ million vs 500,000+ deployments)
Key Facts & Figures
76 numeric metrics compared
| Metric | Microsoft Teams | Mattermost | Ratio |
|---|---|---|---|
| Daily Active Users(millions) | 320 million | — | — |
| App Integrations(count) | ~700 | — | — |
| Paid Starting Price(USD/user/mo) | Included with M365 | — | — |
| 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) | — | — |
| Annual Cost per User (Pro Tier)(USD) | $72 (bundled pricing) | — | — |
| Third-party App Integrations(apps) | 1,000+ | — | — |
| Video Meeting Capacity(participants) | Up to 10,000 | — | — |
| Mobile App Feature Parity(%) | 85% | — | — |
| 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) | $6.50 or free with Microsoft 365 | — | — |
| Minimum Bandwidth for HD Video(Mbps) | 4.5 Mbps | — | — |
| Monthly Active Users (2024)(millions) | 320 million | ~0.3 million | |
| Starting Price (Monthly)(USD) | $0 (Free) or $6 (Standard) | $0 (self-hosted) or $10 (cloud) | |
| Native third-party integrations(count) | 500+ apps | 400+ plugins | |
| Maximum Video Conference Participants(participants) | 10,000 participants | Up to 1,000 (with Jitsi) | |
| Paid Plan Starting Price(USD/user/month) | $6 | — | — |
| Third-Party Integrations(count) | 500+ | — | — |
| Max Video Conference Participants(people) | 10000 | — | — |
| Voice Codec Quality Rating(score (1-10)) | 8 | — | — |
| Enterprise Security Certifications(count) | SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery | — | — |
| Time to Deploy(days) | 1-3 | — | — |
| Uptime Guarantee(%) | 99.9% | — | — |
| Video Conference Max Participants(participants) | 300 | — | — |
| Free Tier File Storage(GB per user) | 100 GB per user | — | — |
| Message Search History (Free Tier)(days) | 90 days | — | — |
| Annual Subscription Cost (Pro, 100 users)(USD) | $7,800 or free with Microsoft 365 | — | — |
| Desktop App Memory Usage(MB) | 450 MB | — | — |
| Voice Latency(ms) | 50-100ms | — | — |
| Free Tier Call Duration Limit(minutes) | 60 minutes (100 participants max) | — | — |
| Monthly Cost (1 Pro User)(USD) | $6.00 | — | — |
| Screen Sharing Maximum FPS(fps) | 30fps | — | — |
| Supported Language Captions(languages) | 60+ languages | — | — |
| Maximum Free Server Categories(categories) | Limited (fixed structure) | — | — |
| Enterprise Fortune 500 Adoption Rate(percent) | 80% | — | — |
| Free Tier Meeting Duration for Group Calls(minutes) | 60 minutes (unlimited participants) | — | — |
| Pro Plan Annual Cost(USD) | $70/year (via Microsoft 365 Business Basic) | — | — |
| Maximum Participants (Standard Meeting)(people) | 300 participants | — | — |
| Free Plan Cloud Storage(GB) | 5 GB (OneDrive) | — | — |
| Breakout Rooms Maximum Count(rooms) | 50 breakout rooms | — | — |
| Global Enterprise Video Conferencing Market Share (2024)(percent) | 28.2% | — | — |
| Monthly Subscription Cost (Pro/Standard)(USD) | $0 (bundled) or $12.50 (standalone) | — | — |
| Message Delivery Latency(milliseconds) | 200-300ms | — | — |
| File Upload Limit(GB) | 250GB | — | — |
| G2 Ease of Use Rating (2024)(stars) | 4.0/5 | — | — |
| Video Meeting Participant Limit(participants) | 300 | — | — |
| Active Monthly Users(millions) | 300+ million users | 500,000+ deployments | — |
| Base Monthly Cost (Single User)(USD) | $4.00 (Teams Essentials) - $12.50 (Teams Premium) | $0 (open-source) - $39/month (Mattermost Cloud) | |
| Maximum File Upload Size(GB) | 2 GB per file | 100+ GB (configurable) | |
| Available Integrations(count) | 1,000+ native integrations | 120+ integrations (community-contributed) | |
| Annual TCO (1,000 users, 3-year average)(USD) | $48,000-150,000 | $0 (self-hosted) or $39,000 (managed cloud) | |
| Base Monthly Cost Per User(USD) | $10.00 | $10.00 | |
| Business+ Tier Monthly Cost Per User(USD) | $18.00 | $18.00 | |
| Available Integrations(integrations) | 500+ | 500+ |
Sourced from publicly available data ·
Key Differences
7 attributes compared head-to-head
Mattermost leads
M
5MattermostMicrosoft Teams
Attribute
Mattermost
- Cloud-only (SaaS)Deployment ModelSelf-hosted or cloud(winner)
- Proprietary, closed-sourceSource Code AccessOpen-source (AGPL v3)(winner)
- 300+ million(winner)Active Monthly Users500,000+ deployments
- Native, seamless integration(winner)Office 365 IntegrationLimited third-party plugins
- $4-12.50 per userStarting Cost (Monthly)$0 (open-source), $39/user/month (managed)(winner)
- Limited regional optionsData Residency ControlFull control with self-hosting(winner)
- 2 GB per fileMaximum File Upload Size100+ GB (configurable)(winner)
- Deployment Model
Microsoft Teams
Cloud-only (SaaS)
Mattermost
Self-hosted or cloud(winner)
- Source Code Access
Microsoft Teams
Proprietary, closed-source
Mattermost
Open-source (AGPL v3)(winner)
- Active Monthly Users
Microsoft Teams
300+ million(winner)
Mattermost
500,000+ deployments
- Office 365 Integration
Microsoft Teams
Native, seamless integration(winner)
Mattermost
Limited third-party plugins
- Starting Cost (Monthly)
Microsoft Teams
$4-12.50 per user
Mattermost
$0 (open-source), $39/user/month (managed)(winner)
- Data Residency Control
Microsoft Teams
Limited regional options
Mattermost
Full control with self-hosting(winner)
- Maximum File Upload Size
Microsoft Teams
2 GB per file
Mattermost
100+ GB (configurable)(winner)
Full Comparison
| Attribute | Microsoft Teams | Mattermost |
|---|---|---|
| Daily Active Users(millions) | 320 million | — |
| App Integrations(count) | ~700 | — |
| 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) | — |
| Native third-party integrations(count) | 500+ apps(winner) | 400+ plugins |
| Microsoft 365 Ecosystem Integration(integration depth) | Native: Word, Excel, SharePoint, OneDrive, Outlook, Power BI | — |
Show 2 more attributesNative Microsoft 365 Integration(integration level) Native (deep) — Available Integrations(count) 1,000+ native integrations 120+ integrations (community-contributed) | ||
| Paid Starting Price(USD/user/mo) | Included with M365 | — |
| 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 | — |
| 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) | — |
| Annual Cost per User (Pro Tier)(USD) | $72 (bundled pricing) | — |
| Free Plan Monthly Cost(USD) | $6 (Teams Essentials) | — |
| Starting Monthly Price per User(USD) | $4.50 | — |
Show 14 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) $6.50 or free with Microsoft 365 — Starting Price (Monthly)(USD) $0 (Free) or $6 (Standard) $0 (self-hosted) or $10 (cloud) Paid Plan Starting Price(USD/user/month) $6 — Annual Subscription Cost (Pro, 100 users)(USD) $7,800 or free with Microsoft 365 — Free Tier Call Duration Limit(minutes) 60 minutes (100 participants max) — Monthly Cost (1 Pro User)(USD) $6.00 — Pro Plan Annual Cost(USD) $70/year (via Microsoft 365 Business Basic) — Monthly Subscription Cost (Pro/Standard)(USD) $0 (bundled) or $12.50 (standalone) — Base Monthly Cost (Single User)(USD) $4.00 (Teams Essentials) - $12.50 (Teams Premium) $0 (open-source) - $39/month (Mattermost Cloud) Base Monthly Cost Per User(USD) $10.00 — Business+ Tier Monthly Cost Per User(USD) $18.00 — Price Stability (2024-2026)(months) Stable — | ||
| AI Translation Languages (2026)(languages) | Limited translation features | — |
| AI Meeting Assistant Cost(USD/month) | Copilot Pro required ($20+ per tenant) | — |
| Third-party App Integrations(apps) | 1,000+ | — |
| Video Meeting Capacity(participants) | Up to 10,000 | — |
| Native Office Integration | Native with SharePoint, OneDrive, Office Web Apps | — |
| AI Copilot Features | Microsoft Copilot Pro (enterprise AI, meeting insights) | — |
| Maximum Free Tier Group Meeting Duration(hours) | 24 hours | — |
| AI Meeting Notes Availability | Premium only ($10/user/month) | — |
Show 18 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 Up to 1,000 (with Jitsi) AI Assistant Integration(capability) Copilot with GPT-4, speech-to-text, real-time translation Limited AI features, plugin-based integration possible Max Video Conference Participants(people) 10000 — Message History (Free Plan)(days) unlimited — Video Conference Max Participants(participants) 300 — Message Search History (Free Tier)(days) 90 days — Supported Language Captions(languages) 60+ languages — Breakout Rooms Maximum Count(rooms) 50 breakout rooms — Message Search Speed (Free Tier)(indexing scope) Last 3 months only — Message History Retention (Free Tier)(days) Unlimited — Video Meeting Participant Limit(participants) 300 — Maximum File Upload Size(GB) 2 GB per file 100+ GB (configurable) Enterprise AI Features Basic automation and workflows — | ||
| Message Search Speed(seconds) | 2-4 seconds average | 0.5-1 second average(winner) |
| Minimum Bandwidth for HD Video(Mbps) | 4.5 Mbps | — |
| Desktop App Memory Usage(MB) | 450 MB | — |
| Voice Latency(ms) | 50-100ms | — |
| Screen Sharing Maximum FPS(fps) | 30fps | — |
Show 1 more attributeMessage Delivery Latency(milliseconds) 200-300ms — | ||
| Mobile App Feature Parity(%) | 85% | — |
| Free Tier Participant Limit(participants) | 100 participants | — |
| Maximum Participants (Standard Meeting)(people) | 300 participants | — |
| 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 (1920x1080) | — |
| Enterprise Deployment Adoption (500+ seat orgs)(percentage) | 67% of deployments | — |
| Global Enterprise Video Conferencing Market Share (2024)(percent) | 28.2% | — |
| 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 | — |
| Video Resolution Support(maximum resolution) | 4K (3840x2160) | — |
| User Learning Curve(difficulty rating) | Steep (enterprise-focused interface) | — |
| Learning Curve(1-10 scale (1=easiest)) | 5 | — |
| Registered Users Globally(millions) | 350+ million monthly active users | — |
| Monthly Active Users (MAU)(millions) | 320M | — |
| Active Monthly Users(millions) | 300+ million users | 500,000+ deployments |
| Enterprise Security Compliance(certifications) | ISO 27001, SOC 2, HIPAA, GDPR | — |
| Enterprise Security Certifications(count) | SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery | — |
| GDPR & Data Sovereignty Compliance | Full control with self-hosting option | — |
| Meeting Recording Retention (Free)(days) | Unlimited (OneDrive) | — |
| Free Tier File Storage(GB per user) | 100 GB per user | — |
| Free Plan Cloud Storage(GB) | 5 GB (OneDrive) | — |
| File Upload Limit(GB) | 250GB | — |
| Supported Operating Systems(platforms) | Windows, Mac, iOS, Android, Web | — |
| Monthly Active Users (2024)(millions) | 320 million(winner) | ~0.3 million |
| Deployment Options | Cloud-only (SaaS) | Self-hosted, cloud, or hybrid |
| Source Code Availability | Proprietary (closed-source) | Open-source (Apache 2.0) |
| Open-Source Availability | Proprietary closed-source | AGPL v3 open-source |
| Data Residency Control | Microsoft-managed regional datacenters (limited control) | Full control with self-hosted deployment |
| HIPAA Compliance Certified | Yes | — |
| Third-Party Integrations(count) | 500+ | — |
| Available Integrations(integrations) | 500+ | — |
| Time to Deploy(days) | 1-3 | — |
| Uptime Guarantee(%) | 99.9% | — |
| Monthly Active Users(millions) | 320 million monthly active users | — |
| Maximum Free Server Categories(categories) | Limited (fixed structure) | — |
| Enterprise Fortune 500 Adoption Rate(percent) | 80% | — |
| Free Tier Meeting Duration for Group Calls(minutes) | 60 minutes (unlimited participants) | — |
| G2 Ease of Use Rating (2024)(stars) | 4.0/5 | — |
| Self-Hosted Deployment Option | Cloud-only SaaS | Full self-hosted + cloud managed options |
| Annual TCO (1,000 users, 3-year average)(USD) | $48,000-150,000 | $0 (self-hosted) or $39,000 (managed cloud)(winner) |
| Deployment Options | Self-hosted, on-premise, cloud | — |
| Open Source | Yes, fully open-source | — |
Microsoft TeamsMMattermost
Daily Active Users(millions)
320 million
—
App Integrations(count)
~700
—
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)
—
Native third-party integrations(count)
500+ apps
400+ plugins
Microsoft 365 Ecosystem Integration(integration depth)
Native: Word, Excel, SharePoint, OneDrive, Outlook, Power BI
—
Show 2 more attributes
Native Microsoft 365 Integration(integration level)
Native (deep)
—
Available Integrations(count)
1,000+ native integrations
120+ integrations (community-contributed)
Paid Starting Price(USD/user/mo)
Included with M365
—
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
—
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)
—
Annual Cost per User (Pro Tier)(USD)
$72 (bundled pricing)
—
Free Plan Monthly Cost(USD)
$6 (Teams Essentials)
—
Starting Monthly Price per User(USD)
$4.50
—
Show 14 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)
$6.50 or free with Microsoft 365
—
Starting Price (Monthly)(USD)
$0 (Free) or $6 (Standard)
$0 (self-hosted) or $10 (cloud)
Paid Plan Starting Price(USD/user/month)
$6
—
Annual Subscription Cost (Pro, 100 users)(USD)
$7,800 or free with Microsoft 365
—
Free Tier Call Duration Limit(minutes)
60 minutes (100 participants max)
—
Monthly Cost (1 Pro User)(USD)
$6.00
—
Pro Plan Annual Cost(USD)
$70/year (via Microsoft 365 Business Basic)
—
Monthly Subscription Cost (Pro/Standard)(USD)
$0 (bundled) or $12.50 (standalone)
—
Base Monthly Cost (Single User)(USD)
$4.00 (Teams Essentials) - $12.50 (Teams Premium)
$0 (open-source) - $39/month (Mattermost Cloud)
Base Monthly Cost Per User(USD)
$10.00
—
Business+ Tier Monthly Cost Per User(USD)
$18.00
—
Price Stability (2024-2026)(months)
Stable
—
AI Translation Languages (2026)(languages)
Limited translation features
—
AI Meeting Assistant Cost(USD/month)
Copilot Pro required ($20+ per tenant)
—
Third-party App Integrations(apps)
1,000+
—
Video Meeting Capacity(participants)
Up to 10,000
—
Native Office Integration
Native with SharePoint, OneDrive, Office Web Apps
—
AI Copilot Features
Microsoft Copilot Pro (enterprise AI, meeting insights)
—
Maximum Free Tier Group Meeting Duration(hours)
24 hours
—
AI Meeting Notes Availability
Premium only ($10/user/month)
—
Show 18 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
Up to 1,000 (with Jitsi)
AI Assistant Integration(capability)
Copilot with GPT-4, speech-to-text, real-time translation
Limited AI features, plugin-based integration possible
Max Video Conference Participants(people)
10000
—
Message History (Free Plan)(days)
unlimited
—
Video Conference Max Participants(participants)
300
—
Message Search History (Free Tier)(days)
90 days
—
Supported Language Captions(languages)
60+ languages
—
Breakout Rooms Maximum Count(rooms)
50 breakout rooms
—
Message Search Speed (Free Tier)(indexing scope)
Last 3 months only
—
Message History Retention (Free Tier)(days)
Unlimited
—
Video Meeting Participant Limit(participants)
300
—
Maximum File Upload Size(GB)
2 GB per file
100+ GB (configurable)
Enterprise AI Features
Basic automation and workflows
—
Message Search Speed(seconds)
2-4 seconds average
0.5-1 second average
Minimum Bandwidth for HD Video(Mbps)
4.5 Mbps
—
Desktop App Memory Usage(MB)
450 MB
—
Voice Latency(ms)
50-100ms
—
Screen Sharing Maximum FPS(fps)
30fps
—
Show 1 more attribute
Message Delivery Latency(milliseconds)
200-300ms
—
Mobile App Feature Parity(%)
85%
—
Free Tier Participant Limit(participants)
100 participants
—
Maximum Participants (Standard Meeting)(people)
300 participants
—
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 (1920x1080)
—
Enterprise Deployment Adoption (500+ seat orgs)(percentage)
67% of deployments
—
Global Enterprise Video Conferencing Market Share (2024)(percent)
28.2%
—
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
—
Video Resolution Support(maximum resolution)
4K (3840x2160)
—
User Learning Curve(difficulty rating)
Steep (enterprise-focused interface)
—
Learning Curve(1-10 scale (1=easiest))
5
—
Registered Users Globally(millions)
350+ million monthly active users
—
Monthly Active Users (MAU)(millions)
320M
—
Active Monthly Users(millions)
300+ million users
500,000+ deployments
Enterprise Security Compliance(certifications)
ISO 27001, SOC 2, HIPAA, GDPR
—
Enterprise Security Certifications(count)
SOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery
—
GDPR & Data Sovereignty Compliance
Full control with self-hosting option
—
Meeting Recording Retention (Free)(days)
Unlimited (OneDrive)
—
Free Tier File Storage(GB per user)
100 GB per user
—
Free Plan Cloud Storage(GB)
5 GB (OneDrive)
—
File Upload Limit(GB)
250GB
—
Supported Operating Systems(platforms)
Windows, Mac, iOS, Android, Web
—
Monthly Active Users (2024)(millions)
320 million
~0.3 million
Deployment Options
Cloud-only (SaaS)
Self-hosted, cloud, or hybrid
Source Code Availability
Proprietary (closed-source)
Open-source (Apache 2.0)
Open-Source Availability
Proprietary closed-source
AGPL v3 open-source
Data Residency Control
Microsoft-managed regional datacenters (limited control)
Full control with self-hosted deployment
HIPAA Compliance Certified
Yes
—
Third-Party Integrations(count)
500+
—
Available Integrations(integrations)
500+
—
Time to Deploy(days)
1-3
—
Uptime Guarantee(%)
99.9%
—
Monthly Active Users(millions)
320 million monthly active users
—
Maximum Free Server Categories(categories)
Limited (fixed structure)
—
Enterprise Fortune 500 Adoption Rate(percent)
80%
—
Free Tier Meeting Duration for Group Calls(minutes)
60 minutes (unlimited participants)
—
G2 Ease of Use Rating (2024)(stars)
4.0/5
—
Self-Hosted Deployment Option
Cloud-only SaaS
Full self-hosted + cloud managed options
Annual TCO (1,000 users, 3-year average)(USD)
$48,000-150,000
$0 (self-hosted) or $39,000 (managed cloud)
Deployment Options
Self-hosted, on-premise, cloud
—
Open Source
Yes, fully open-source
—
Pros & Cons
10 pros·6 cons across both
M
Microsoft Teams
+5-3
Pros
- 300+ million active monthly users with largest network effect
- Native integration with Office, SharePoint, OneDrive, and Outlook
- Advanced meeting features: live transcription, background blur, together mode, noise suppression
- Automatic compliance archiving and eDiscovery for regulated industries
- Mobile apps with offline message access across iOS, Android, web
Cons
- $4-12.50 per user/month adds significant cost at enterprise scale (1,000+ users = $48K-150K annually)
- Data stored on Microsoft servers with limited regional options (no full on-premises option)
- Slower message search and file retrieval compared to modern alternatives
M
Mattermost
+5-3
Pros
- Open-source code (AGPL v3) allows full customization and security audits
- Self-hosted deployment enables data residency control and HIPAA/FedRAMP compliance
- Free community edition supports unlimited users and teams
- Lower TCO: $0-39/user/month vs Teams' $4-12.50, saving $50K+ annually for 1,000 users
- 100+ GB configurable file uploads vs Teams' 2GB limit
Cons
- Requires IT infrastructure for self-hosting (servers, backups, security patches, updates)
- Limited third-party integrations compared to Teams' Office 365 ecosystem (120 integrations vs 1,000+)
- Smaller community (500K+ deployments) means fewer plugins and less documentation than Teams
Frequently Asked Questions
5 questions
No, Microsoft Teams is cloud-only (SaaS) and cannot be self-hosted. Microsoft does not offer on-premises deployment. If data residency and self-hosting are requirements, Mattermost is the appropriate alternative.
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