Communication Comparison
Slack vs Microsoft Teams
Slack is the better choice for startups and tech companies that want a focused, developer-friendly communication tool; Microsoft Teams wins for organizations already on Microsoft 365.
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Slack
VS
Microsoft Teams
Ratings are editorial scores based on publicly available user reviews from G2, Capterra, and similar platforms. They are not collected from BizStackHub users.
Slack
Your productivity platform
✓ Free plan · From $7.25/mo per user
🎯 Tech companies, startups, and teams that prioritize integrations
Pros
- Clean, intuitive interface
- Best-in-class third-party integrations
- Powerful search
- Excellent developer tools and bots
- Threads keep conversations organized
Cons
- Free tier has 90-day message limit
- Gets expensive for large teams
- No built-in video calling (relies on Huddles)
- Can create notification overload
- File storage limits
Microsoft Teams
Chat, meet, call, and collaborate all in one place
✓ Free plan · From $6/mo per user
🎯 Organizations already using Microsoft 365 and enterprise teams
Pros
- Included with Microsoft 365
- Native Office integration
- Better video calling features
- SharePoint + OneDrive built-in
- Strong for large enterprises
Cons
- Interface can feel cluttered
- Slower to load than Slack
- Less intuitive channel structure
- Third-party integrations weaker than Slack
- Can be overwhelming for small teams
Ratings Comparison
Pricing Comparison
Slack Plans
Microsoft Teams Plans
Free
Free
90-day message history, 10 integrations
Free
Free
Group meetings up to 60 min, 5GB storage
Pro
$7.25/mo/user
Unlimited history + integrations
Essentials
$4/mo/user
30-hour meetings, 10GB storage
Business+
$12.50/mo/user
SAML SSO + compliance exports
Microsoft 365 Business Basic
$6/mo/user
Teams + Office web apps
Enterprise Grid
Custom
Multi-org management
Microsoft 365 Business Standard
$12.50/mo/user
Teams + full Office desktop apps
Feature Comparison
Feature
Slack
Microsoft Teams
Messaging
Channels / spaces
✓
✓
Threaded replies
✓
✓
Message history
90 days (free)
Unlimited (free)
Direct messages
✓
✓
Emoji reactions
✓
✓
Polls
Via apps
Built-in
Video & Meetings
Video calls
Huddles
✓
Screen sharing
✓
✓
Meeting recordings
Business+
✓
Meeting capacity
50 (Huddles)
1,000+
Whiteboard
Via apps
Built-in
Productivity & Integrations
App integrations
2,500+
1,000+
Microsoft Office integration
Partial
Native
File storage
5GB (free)
5GB (free) / OneDrive
Workflow automation
Workflow Builder
Power Automate
API / developer tools
Best-in-class
Good
The Verdict
Bottom Line
Slack leads on integrations and UX; Teams leads on video meetings and Microsoft integration.
Choose Slack
Choose Slack if you're a startup, tech company, or team that values integrations, developer tools, and a clean messaging experience.
Choose Microsoft Teams
Choose Microsoft Teams if your team already uses Microsoft 365 — it's effectively free and offers best-in-class video meetings.