Can I use Slack and Microsoft Teams together?

Yes, organizations can run both platforms in parallel. Many enterprises use Teams for internal communications and Slack for specific departments or partner collaboration. However, this increases IT overhead and user license costs. Consider unified communication bridges like NUACOM that integrate both platforms with phone systems for seamless customer communication regardless of your primary platform.

Which platform has better security for regulated industries?

Microsoft Teams offers superior enterprise security features including advanced threat protection, data loss prevention, and compliance certifications (HIPAA, FedRAMP, SOC 2) through Microsoft 365. Slack meets compliance needs but Microsoft Teams is the default choice for heavily regulated sectors like healthcare and finance requiring integrated compliance across communication and productivity tools.

What's the hidden cost difference between Slack and Teams in 2026?

Slack's standalone pricing ($7.25-$15+/user/month) doesn't include calling, meetings at enterprise scale, or Office apps. Teams bundled with Microsoft 365 ($6-$14/user/month) includes all these. If you need advanced calling or video meetings with Slack, add-on costs significantly narrow the pricing gap. Organizations should calculate total cost of ownership including all add-ons.

Which platform integrates better with third-party tools?

Slack has a significant advantage with 2,000+ native integrations in its app marketplace compared to Teams' 800+. If your organization relies on specialized business tools (analytics, CRM, project management), Slack typically offers more direct, out-of-the-box integrations. Teams compensates through Power Automate and Power Apps for custom automation but requires more technical setup.

Is message history unlimited in both platforms?

Both offer unlimited message history on paid plans, but Slack Pro plan ($7.25/user/month) includes unlimited history and file search. Teams doesn't have a message limit restriction on any tier. The Free versions of both limit searchable history (90 days for Slack Free, limited for Teams Free).

Slack vs Microsoft Teams

Updated March 29, 2026

Slack

Enterprise team messaging platform with AI collaboration features and extensive integrations

Tech-forward teams, startups, and organizations prioritizing integrations and user experience over bundled features.

Check Price

Microsoft Teams

Enterprise unified communications and collaboration platform integrated with Microsoft 365.

Enterprise organizations with existing Microsoft investments, regulated industries needing advanced security, and teams requiring integrated calling and meetings.

Short Answer

Slack excels as a dedicated messaging and collaboration platform with superior integrations and user experience, while Microsoft Teams offers better value through Microsoft 365 bundles and native Office integration. Teams is ideal for organizations already invested in Microsoft, while Slack suits teams prioritizing focused communication and third-party app ecosystems.

Our Verdict

Both platforms are market leaders with distinct strengths: choose Slack for best-in-class messaging, integrations, and user experience, or choose Microsoft Teams for organizations seeking unified communications within a Microsoft 365 ecosystem with better total cost of ownership. The decision ultimately depends on your existing tech stack and whether you prioritize best-in-breed communication or ecosystem consolidation.

Slack7.5

7.5Microsoft Teams

Choose Slack if

Tech-forward teams, startups, and organizations prioritizing integrations and user experience over bundled features.

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Key Differences at a Glance

🔹

Primary Use Case: Dedicated team messaging and integrations vs Unified communications with Office 365 integration

🔹

Pricing Model: Microsoft Teams wins (Bundled with Microsoft 365 ($6-14/user/month) vs Standalone subscription ($7.25-15+/user/month))

🔹

Third-Party Integrations: Slack wins (2,000+ native apps in app marketplace vs 800+ apps, power through Office ecosystem)

See all 7 differences

Key Facts & Figures

Metric	Slack	Microsoft Teams	Diff
Daily Active Users(millions)	~38 Million	320 million	-88%
App Integrations(count)	2,600+	~700	+271%
Paid Starting Price(USD/user/mo)	$7.25

Key Differences

Slack

Attribute

Microsoft Teams

Dedicated team messaging and integrations

Primary Use Case

Unified communications with Office 365 integration

Standalone subscription ($7.25-15+/user/month)

Pricing Model

Bundled with Microsoft 365 ($6-14/user/month)🏆

2,000+ native apps in app marketplace🏆

Third-Party Integrations

800+ apps, power through Office ecosystem

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Last updated: March 29, 2026AI generated

Primary Use Case

Slack

Dedicated team messaging and integrations

Microsoft Teams

Unified communications with Office 365 integration

Pricing Model

Slack

Standalone subscription ($7.25-15+/user/month)

Microsoft Teams

Bundled with Microsoft 365 ($6-14/user/month)🏆

Third-Party Integrations

Slack

2,000+ native apps in app marketplace🏆

Microsoft Teams

800+ apps, power through Office ecosystem

File Storage & Collaboration

Slack

Basic storage, integrates with external tools

Microsoft Teams

Integrated SharePoint, OneDrive, Office apps🏆

Learning Curve

Slack

Intuitive, minimal onboarding required🏆

Microsoft Teams

Steeper curve due to feature density

AI Features (2026)

Slack

Slack AI for summarization and search

Microsoft Teams

Copilot integration with enterprise AI🏆

Meeting Capabilities

Slack

Basic meetings, best for chat-first teams

Microsoft Teams

Enterprise-grade meetings with recording & transcription🏆

Full Comparison

Attribute	Slack	Microsoft Teams

Daily Active Users(millions)	~38 Million	320 million
Enterprise Deployment Adoption (500+ seat orgs)(percentage)	67% of deployments	—

App Integrations(count)	2,600+	~700

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)	$12.50 (Slack Pro tier)	—
Starting Paid Plan Cost(USD/user/month)	$6/month (Microsoft 365 bundle)	—
Free Plan Monthly Cost(USD)	$6 (Teams Essentials)	—
Show 1 more attribute Starting Monthly Price Per User(USD) $4.50 —

Third-Party App Integrations(count)	2,000+	800+
Microsoft 365 Integration Depth(integration points)	8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)	—

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)
Mobile App Feature Parity(percentage)	95%	85%
Free Tier Meeting Participant Limit(participants)	Unlimited (Slack Huddles for video limited to 50 participants)	—
Show 7 more attributes 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) — Maximum Free Tier Group Meeting Duration(hours) 24 hours — AI Meeting Notes Availability Premium only ($10/user/month) — Free Meeting Duration (3+ participants)(minutes) 60 minutes — Real-Time Translation Languages(count) 31 languages —

Message Search Speed(qualitative)	Excellent - optimized search indexing	Good - improving with Copilot enhancements

Available Integrations(integrations)	2,000+ available integrations	—

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)	—

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 Free Breakout Rooms(rooms)	50 rooms	—

AI Translation Languages (2026)(languages)	Limited translation features	—

Free Tier Participant Limit(participants)	100 participants	—
Maximum Meeting Participants(count)	1,000+ 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	—
AI Meeting Summaries(null)	Basic transcription only	—

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	—

3-Year TCO Advantage for 1,000 Users with M365(percentage savings)	47% lower cost	—

Slack

Microsoft Teams

Daily Active Users(millions)

~38 Million

320 million

Enterprise Deployment Adoption (500+ seat orgs)(percentage)

67% of deployments

—

App Integrations(count)

2,600+

~700

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)

$12.50 (Slack Pro tier)

—

Starting Paid Plan Cost(USD/user/month)

$6/month (Microsoft 365 bundle)

—

Free Plan Monthly Cost(USD)

$6 (Teams Essentials)

—

Show 1 more attribute

Starting Monthly Price Per User(USD)

$4.50

—

Third-Party App Integrations(count)

2,000+

800+

Microsoft 365 Integration Depth(integration points)

8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)

—

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)

Mobile App Feature Parity(percentage)

95%

85%

Free Tier Meeting Participant Limit(participants)

Unlimited (Slack Huddles for video limited to 50 participants)

—

Show 7 more attributes

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)

—

Maximum Free Tier Group Meeting Duration(hours)

24 hours

—

AI Meeting Notes Availability

Premium only ($10/user/month)

—

Free Meeting Duration (3+ participants)(minutes)

60 minutes

—

Real-Time Translation Languages(count)

31 languages

—

Message Search Speed(qualitative)

Excellent - optimized search indexing

Good - improving with Copilot enhancements

Available Integrations(integrations)

2,000+ available integrations

—

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)

—

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 Free Breakout Rooms(rooms)

50 rooms

—

AI Translation Languages (2026)(languages)

Limited translation features

—

Free Tier Participant Limit(participants)

100 participants

—

Maximum Meeting Participants(count)

1,000+ 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

—

AI Meeting Summaries(null)

Basic transcription only

—

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

—

3-Year TCO Advantage for 1,000 Users with M365(percentage savings)

47% lower cost

—

Full Comparison

Attribute	Slack	Microsoft Teams

Daily Active Users(millions)	~38 Million	320 million
Enterprise Deployment Adoption (500+ seat orgs)(percentage)	67% of deployments	—

App Integrations(count)	2,600+	~700

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)	$12.50 (Slack Pro tier)	—
Starting Paid Plan Cost(USD/user/month)	$6/month (Microsoft 365 bundle)	—
Free Plan Monthly Cost(USD)	$6 (Teams Essentials)	—
Show 1 more attribute Starting Monthly Price Per User(USD) $4.50 —

Third-Party App Integrations(count)	2,000+	800+
Microsoft 365 Integration Depth(integration points)	8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)	—

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)
Mobile App Feature Parity(percentage)	95%	85%
Free Tier Meeting Participant Limit(participants)	Unlimited (Slack Huddles for video limited to 50 participants)	—
Show 7 more attributes 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) — Maximum Free Tier Group Meeting Duration(hours) 24 hours — AI Meeting Notes Availability Premium only ($10/user/month) — Free Meeting Duration (3+ participants)(minutes) 60 minutes — Real-Time Translation Languages(count) 31 languages —

Message Search Speed(qualitative)	Excellent - optimized search indexing	Good - improving with Copilot enhancements

Available Integrations(integrations)	2,000+ available integrations	—

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)	—

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 Free Breakout Rooms(rooms)	50 rooms	—

AI Translation Languages (2026)(languages)	Limited translation features	—

Free Tier Participant Limit(participants)	100 participants	—
Maximum Meeting Participants(count)	1,000+ 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	—
AI Meeting Summaries(null)	Basic transcription only	—

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	—

3-Year TCO Advantage for 1,000 Users with M365(percentage savings)	47% lower cost	—

Slack

Microsoft Teams

Daily Active Users(millions)

~38 Million

320 million

Enterprise Deployment Adoption (500+ seat orgs)(percentage)

67% of deployments

—

App Integrations(count)

2,600+

~700

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)

$12.50 (Slack Pro tier)

—

Starting Paid Plan Cost(USD/user/month)

$6/month (Microsoft 365 bundle)

—

Free Plan Monthly Cost(USD)

$6 (Teams Essentials)

—

Show 1 more attribute

Starting Monthly Price Per User(USD)

$4.50

—

Third-Party App Integrations(count)

2,000+

800+

Microsoft 365 Integration Depth(integration points)

8+ apps (Outlook, Excel, Word, OneDrive, SharePoint, Project, Planner, Power BI)

—

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)

Mobile App Feature Parity(percentage)

95%

85%

Free Tier Meeting Participant Limit(participants)

Unlimited (Slack Huddles for video limited to 50 participants)

—

Show 7 more attributes

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)

—

Maximum Free Tier Group Meeting Duration(hours)

24 hours

—

AI Meeting Notes Availability

Premium only ($10/user/month)

—

Free Meeting Duration (3+ participants)(minutes)

60 minutes

—

Real-Time Translation Languages(count)

31 languages

—

Message Search Speed(qualitative)

Excellent - optimized search indexing

Good - improving with Copilot enhancements

Available Integrations(integrations)

2,000+ available integrations

—

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)

—

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 Free Breakout Rooms(rooms)

50 rooms

—

AI Translation Languages (2026)(languages)

Limited translation features

—

Free Tier Participant Limit(participants)

100 participants

—

Maximum Meeting Participants(count)

1,000+ 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

—

AI Meeting Summaries(null)

Basic transcription only

—

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

—

3-Year TCO Advantage for 1,000 Users with M365(percentage savings)

47% lower cost

—

Slack vs Microsoft Teams

Slack

Microsoft Teams

Short Answer

Our Verdict

Track this comparison

Key Differences at a Glance

Key Facts & Figures

Key Differences

Related Comparisons

Related Articles

Explore Entities

More Software

People Also Compare

Full Comparison

Visual Comparison

Pros & Cons

Slack

Pros

Cons

Microsoft Teams

Pros

Cons

Frequently Asked Questions

Resources & Learn More

Where to Buy

Wikipedia

Videos

Full Comparison

Visual Comparison

Slack vs Microsoft Teams

Slack

Microsoft Teams

Short Answer

Our Verdict

🔔Track this comparison

Key Differences at a Glance

Key Facts & Figures

Key Differences

Related Comparisons

Related Articles

Explore Entities

More Software

People Also Compare

Full Comparison

Visual Comparison

Pros & Cons

Slack

Pros

Cons

Microsoft Teams

Pros

Cons

Frequently Asked Questions

Resources & Learn More

Where to Buy

Wikipedia

Videos

Full Comparison

Visual Comparison

Track this comparison