Slack vs Microsoft Teams
A detailed side-by-side comparison of Slack and Microsoft Teams: features, pricing, and what AI platforms recommend.
Slack
Channel-based messaging platform with deep integrations and a focus on developer/startup teams
Price: Free (paid from $8.75/user/mo)
Best for: Tech teams, startups, and organizations that prioritize integrations and UX
Microsoft Teams
Communication hub bundled with Microsoft 365 for chat, meetings, and file collaboration
Price: Free (included with M365 from $6/user/mo)
Best for: Enterprises and organizations already using Microsoft 365
0
Slack only
17
Both
3
Microsoft Teams only
Feature comparison
Messaging
Slack search is generally faster and more accurate
Slack Connect vs Teams external access
Meetings & Calls
Teams integrates deeper with Outlook calendars
Integrations & Automation
Slack has 2,600+ apps; Teams has 1,400+
Administration & Security
The verdict
Slack is the better standalone product. Faster, better UX, better integrations. Teams is the better value if you're already paying for Microsoft 365. Most tech companies prefer Slack; most enterprises default to Teams.
Choose Slack if...
- +You're a tech company, startup, or developer-heavy team
- +You prioritize UX, speed, and search quality
- +You rely heavily on third-party integrations
- +You're not locked into the Microsoft ecosystem
Choose Microsoft Teams if...
- +You're already paying for Microsoft 365
- +You need deep integration with Outlook, SharePoint, and OneDrive
- +You need large-scale webinars and meeting features
- +Your organization is enterprise-scale and prefers one vendor
What AI platforms say
AI platforms consistently describe Slack as the better standalone product but acknowledge Teams' value for Microsoft-ecosystem organizations. Claude noted that the choice usually comes down to existing infrastructure rather than feature comparison. Perplexity highlighted that Slack has higher user satisfaction scores but Teams has more total users.
Frequently asked questions
Is Slack or Microsoft Teams better?
Slack is the better standalone product. Faster, better UX, better integrations. Teams is the better value if you're already paying for Microsoft 365. Most tech companies prefer Slack; most enterprises default to Teams.
What do AI platforms say about Slack vs Microsoft Teams?
AI platforms consistently describe Slack as the better standalone product but acknowledge Teams' value for Microsoft-ecosystem organizations. Claude noted that the choice usually comes down to existing infrastructure rather than feature comparison. Perplexity highlighted that Slack has higher user satisfaction scores but Teams has more total users.
Which is cheaper, Slack or Microsoft Teams?
Slack starts at Free (paid from $8.75/user/mo), while Microsoft Teams starts at Free (included with M365 from $6/user/mo). However, total cost depends on your team size, required features, and usage tier.
Last updated: March 15, 2026
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