By Billy G. · Founder & Lead EditorVerified May 18 by Billy G.
SlackvsMicrosoft Teams
Worth-It Score: 68/100WAIT — WAIT under $7Slack is solid but not standout — wait for a real discount or a better-aligned alternative.
✓VerifiedConfidence: 89%
Verdict: Microsoft Teams wins for organizations already on Microsoft 365. Slack wins for tech-forward companies, startups, and teams that prioritize developer integrations.
How we scored itSpec verificationOwner sentimentLive pricing (4h refresh)Editorial reviewOur methodology →
Winner: Microsoft Teams
Slack: 6.8/10
Microsoft Teams: 8.8/10
Spec-by-spec comparison
Slack
Microsoft Teams
Price (paid base tier)
$7.25/user/mo (Pro)
Included with M365 Business Basic ($6/user/mo)
Microsoft 365 native
No (integration required)
Yes
Developer integrations
Best-in-class
Good but fewer
Video calling
Huddles + basic calls
Full Teams Meetings (better)
Free plan message history
90 days
Unlimited (with M365)
Slack
What works
Best messaging UX in enterprise collaboration
Superior developer/engineering integrations
Cleaner, faster interface
What doesn't
Paid plans start at $7.25/user/mo (Pro)
Free plan limits message history to 90 days
Video calls less polished than dedicated platforms
Microsoft Teams
What works
Included with Microsoft 365 — no extra cost for M365 orgs
Native SharePoint, OneDrive, and Outlook integration
Full phone system (Teams Phone) available
What doesn't
Heavier, more complex UI
Lower developer/API-first integration quality
Guest access for external parties less intuitive than Slack Connect
Bottom line
Our pick: Microsoft Teams. It edges out the alternative on included with microsoft 365 — no extra cost for m365 orgs. That said, Slack still wins on best messaging ux in enterprise collaboration — consider it if that single trade matters most for your use.