Team communication comparison
Slack vs. Microsoft Teams: focused chat or all-in-one teamwork?
Slack offers a polished channel-based experience with flexible integrations and fast collaboration. Microsoft Teams combines chat, meetings, files, and Microsoft 365 in one connected workspace.
The short answer
Choose Microsoft Teams if your business already uses Outlook, Word, Excel, OneDrive, or SharePoint—or if video meetings and file collaboration matter most. Choose Slack if you want the cleaner chat experience, flexible channels, strong app connections, and easy collaboration with outside partners.
Slack
Best for channel-based communication
- Excellent channels, threads, search, and notifications
- Strong third-party app ecosystem
- Easy external collaboration with Slack Connect
Microsoft Teams
Best for meetings and Microsoft 365
- Chat, meetings, calling, and files in one place
- Deep Outlook, OneDrive, and Office integration
- Strong value for Microsoft-based businesses
Feature by feature
Where each communication tool wins
Slack centers the experience on organized conversation. Teams is a broader collaboration hub built around meetings, files, and Microsoft 365.
| Category | Slack | Microsoft Teams |
|---|---|---|
| Best overall | More refined for fast channel-based communication | More complete package for meetings, files, and office work Winner |
| Ease of use | Clean interface with excellent threads and notification controls Winner | Familiar to Microsoft users, but its wider feature set can feel busier |
| Free plan | 90 days of searchable messages, up to three apps, and 30-minute calls | Group meetings up to 60 minutes, up to 100 participants, and 5 GB of cloud storage per user Winner |
| Messaging | Excellent channels, threads, search, clips, canvases, and workflow tools Winner | Chat, channels, posts, file sharing, and collaboration in Teams |
| Meetings | Huddles are convenient for quick audio, video, and screen sharing | More robust scheduled meetings, webinars, calendars, recordings, and administration Winner |
| Office files | Works with Google Drive, Microsoft 365, and many third-party tools | Native Word, Excel, PowerPoint, OneDrive, and SharePoint collaboration Winner |
| Integrations | Broad app marketplace and flexible custom integrations Winner | Strong Microsoft ecosystem plus third-party apps |
| External collaboration | Slack Connect creates shared channels with clients and partners Winner | Guest access and shared channels, with more administrative setup |
| Value | Pro starts at $7.25 per active user monthly with annual billing | Teams Essentials starts at $4 per user monthly with annual billing Winner |
Make the call
Choose based on how your team already works
Choose Slack if you…
- Want the strongest day-to-day chat experience
- Depend on many non-Microsoft business apps
- Collaborate regularly with clients or partner companies
- Prefer informal huddles and flexible workflows
Choose Microsoft Teams if you…
- Already use Microsoft 365 across the business
- Need scheduled meetings and larger video calls
- Collaborate frequently in Word, Excel, and PowerPoint
- Want chat, meetings, storage, and office tools together
Pricing
Teams costs less; Slack offers the more focused chat experience
These U.S. prices were checked on September 25, 2026. Prices below use annual billing where stated; monthly billing may cost more.
Pro costs $7.25 with annual billing or $8.75 monthly. Business+ costs $15 annually or $18 monthly per active user. Slack also offers an Enterprise+ plan with custom pricing.
Teams Essentials is $4 per user monthly with annual billing. Microsoft 365 Business Basic with Teams is $7 per user monthly and includes web and mobile apps, business email, and 1 TB of cloud storage per user.
Our conclusion
Future Geek’s verdict
Microsoft Teams is our overall recommendation for most small businesses. Its lower starting price, stronger meetings, generous storage, and Microsoft 365 connections make it the better all-around value.
Slack is our communication-first recommendation for teams that live in channels, rely on a diverse collection of apps, or work closely with outside organizations. Its messaging experience remains easier to organize and more pleasant to use.
Fact check
Official sources
Editorial disclosure: This page reflects Future Geek’s independent comparison of publicly listed features. Product capabilities, prices, and usage limits may change. Future Geek may later earn a commission from qualifying links, but no paid placement affected this review.
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