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Microsoft Teams vs Mattermost 2026: Comparison

Microsoft Teams is a cloud-based enterprise collaboration platform with 320+ million monthly active users integrated into Microsoft 365, while Mattermost is a self-hosted open-source alternative offering greater control and privacy. Teams dominates the market with broader integrations; Mattermost appeals to organizations requiring data sovereignty and deployment flexibility.

Microsoft Teams

Microsoft Teams

Enterprise collaboration platform integrated with Microsoft 365 suite, offering messaging, video calls, and Office app integration.

Enterprise organizations using Microsoft 365, companies prioritizing feature richness and integration depth, regulated industries needing proven compliance frameworks

Score63%
VS
M

Mattermost

Open-source, self-hosted team collaboration platform with enterprise security controls

Organizations prioritizing data privacy and control, tech-forward teams with DevOps capabilities, companies in highly regulated sectors (healthcare, finance, government), open-source advocates

Score63%

Quick Answer

AI Summary

Microsoft Teams is a cloud-based enterprise collaboration platform with 320+ million monthly active users integrated into Microsoft 365, while Mattermost is a self-hosted open-source alternative offering greater control and privacy. Teams dominates the market with broader integrations; Mattermost appeals to organizations requiring data sovereignty and deployment flexibility.

Our Verdict

AI-assisted

Choose Microsoft Teams if you're already invested in Microsoft 365, need enterprise-grade reliability with minimal setup, and prioritize feature breadth and integration depth. Choose Mattermost if you require self-hosted deployment, open-source transparency, data sovereignty control, or operate in regulated industries with strict data residency requirements.

Community feedback

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Microsoft Teams
7.5/10
Mattermost
7.5/10
M

TIE — neck and neck

Microsoft Teams

Choose Microsoft Teams if

Enterprise organizations using Microsoft 365, companies prioritizing feature richness and integration depth, regulated industries needing proven compliance frameworks

M

Choose Mattermost if

Organizations prioritizing data privacy and control, tech-forward teams with DevOps capabilities, companies in highly regulated sectors (healthcare, finance, government), open-source advocates

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Key Differences at a Glance

  • Deployment Model:Mattermost wins(Self-hosted or cloud vs Cloud-only (SaaS))
  • Monthly Active Users:Microsoft Teams wins(320 million (2024) vs 300,000+ estimated)
  • Source Code:Mattermost wins(Open-source (Apache 2.0) vs Proprietary)
See all 7 differences

Key Facts & Figures

82 numeric metrics compared

MetricMicrosoft TeamsMattermostRatio
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(integrations)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+ apps400+ plugins
Maximum Video Conference Participants(participants)10,000 participantsUp 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 CertificationsSOC 2, HIPAA, FedRAMP, GDPR, DLP, eDiscovery
Time to Deploy(hours)1-3
Uptime Guarantee(percent)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 users500,000+ 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 file100+ GB (configurable)
Available Integrations(count)1,000+ native integrations120+ integrations (community-contributed)
Annual TCO (1,000 users, 3-year average)(USD)$48,000-150,000$0 (self-hosted) or $39,000 (managed cloud)
Pro Plan Monthly Cost Per User(USD)$6.00
File Storage Per User(GB)1000 (1TB OneDrive)
Free Group Video Call Duration Limit(minutes)60
Maximum Video Conference Participants (Free)(people)100
Native Integrations Available(count)1000+
G2 User Interface Rating(out of 5)4.1/5 (8,300 reviews)
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

Microsoft Teams
3Microsoft Teams
Mattermost leads
M
4Mattermost
  • Deployment Model

    Microsoft Teams

    Cloud-only (SaaS)

    Mattermost

    Self-hosted or cloud(winner)

  • Monthly Active Users

    Microsoft Teams

    320 million (2024)(winner)

    Mattermost

    300,000+ estimated

  • Source Code

    Microsoft Teams

    Proprietary

    Mattermost

    Open-source (Apache 2.0)(winner)

  • Base Price (per user/month)

    Microsoft Teams

    $6 (Teams Free) - $12.50 (Standard)

    Mattermost

    Free (self-hosted) - $10 (cloud)(winner)

  • Microsoft 365 Integration

    Microsoft Teams

    Native seamless integration(winner)

    Mattermost

    Limited third-party integration

  • Data Sovereignty Control

    Microsoft Teams

    Limited (Microsoft-managed)

    Mattermost

    Complete (self-hosted option)(winner)

  • Number of Native Integrations

    Microsoft Teams

    500+ apps(winner)

    Mattermost

    400+ integrations via plugins

Full Comparison

Microsoft Teams
MMattermost
Daily Active Users(millions)
320 million
Monthly Active Users (2024)(millions)
320 million
~0.3 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 1 more attribute
Native Microsoft 365 Integration(integration level)
Native (deep)
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 15 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)
Pro Plan Monthly Cost Per User(USD)
$6.00
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)
AI Assistant Integration
Copilot with GPT-4, speech-to-text, real-time translation
Limited AI features, plugin-based integration possible
Third-Party App Integrations(integrations)
1,000+
Available Integrations(integrations)
500+
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 17 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)
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
Available Integrations(count)
1,000+ native integrations
120+ integrations (community-contributed)
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)
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
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
File Storage Per User(GB)
1000 (1TB OneDrive)
Supported Operating Systems(platforms)
Windows, Mac, iOS, Android, Web
Deployment Options
Cloud-only (SaaS)
Self-hosted, cloud, or hybrid
Source Code Availability
Proprietary (closed-source)
Open-source (Apache 2.0)
Data Residency Control
Microsoft-managed regional datacenters (limited control)
Full control with self-hosted deployment
HIPAA Compliance Certified
Yes
Third-Party Integrations(count)
500+
Native Integrations Available(count)
1000+
Time to Deploy(hours)
1-3
Learning Curve(hours to proficiency)
5
Uptime Guarantee(percent)
99.9%
Monthly Active Users(millions)
360 million
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
G2 User Interface Rating(out of 5)
4.1/5 (8,300 reviews)
Maximum File Upload Size(GB)
2 GB per file
100+ GB (configurable)
Open-Source Availability
Proprietary closed-source
AGPL v3 open-source
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)
Free Group Video Call Duration Limit(minutes)
60
Maximum Video Conference Participants (Free)(people)
100
Message Search Capability(text)
Basic keyword search (limited free tier)
Deployment Options
Self-hosted, on-premise, cloud
Open Source
Yes, fully open-source

Pros & Cons

10 pros·6 cons across both

Microsoft Teams
M
Microsoft Teams

Microsoft Teams

+5-3

Pros

  • Seamless integration with Outlook, OneDrive, SharePoint, and 500+ Microsoft ecosystem apps
  • 320 million monthly active users with proven enterprise reliability
  • Advanced AI features including Copilot with GPT-4 integration
  • Video conferencing supports up to 10,000 participants with recording and transcription
  • Compliance certifications: HIPAA, SOC 2 Type II, ISO 27018

Cons

  • Cloud-only deployment with no on-premises option for data control
  • Requires Microsoft account and potentially expensive Microsoft 365 licensing
  • Limited customization of core platform functionality
M

Mattermost

+5-3

Pros

  • Self-hosted deployment offers complete data sovereignty and zero vendor lock-in
  • Open-source codebase (Apache 2.0) allows full customization and security auditing
  • Free forever plan for self-hosted deployment with no user limitations
  • GDPR-compliant with data residency control for regulated industries
  • Lower total cost of ownership for organizations with IT infrastructure

Cons

  • Requires dedicated IT resources for installation, maintenance, and security patching
  • Smaller ecosystem with fewer native integrations (400 vs Teams' 500+)
  • Limited AI/automation features compared to Teams' Copilot integration

Frequently Asked Questions

5 questions

  1. Mattermost can replace Teams for core messaging and collaboration needs, but Teams' advantages are significant: seamless Microsoft 365 integration (Outlook, SharePoint, OneDrive), larger participant video calls (10,000 vs 1,000), and built-in AI features via Copilot. Mattermost excels if you prioritize data sovereignty, open-source transparency, and cost control. For organizations heavily invested in Microsoft products, migration may not be cost-effective.

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