Slack
Salesforce (Slack Technologies)
7
Overall Score / 10
Microsoft Teams
Microsoft Corporation
6.4
Overall Score / 10
Our Verdict
Choose Slack if:
- —You need the broadest third-party app integration ecosystem
- —Your team values the best messaging UX with threads and channels
- —You're in the Salesforce ecosystem
Choose Microsoft Teams if:
- —Your organization already uses Microsoft 365
- —You need combined video conferencing + chat + file sharing
- —You want to minimize per-seat costs (included in Microsoft 365)
The biggest difference: Slack has 2,600+ third-party app integrations and a better messaging experience; Teams is deeply integrated with Microsoft 365 (Word, Excel, SharePoint, OneDrive)
Side-by-Side Comparison
| Criteria | Slack | Microsoft Teams |
|---|---|---|
| Cheapest Paid Plan | $8.75/mo (Pro)Source: Salesforce (Slack Technologies) pricing page → | $4/mo (Teams Essentials)Source: Microsoft Corporation pricing page → |
| Free Tier | Yes 90-day message history, 10 integrations, 1:1 voice/video calls, 5GB total storage | Yes Chat, video meetings (60 min limit), file sharing, 5GB storage |
| Value for Money | 6 | 7 |
| Ease of Use | 9 | 6 |
| Feature Power | 8 | 9 |
| Setup Ease | 9 | 6 |
| Migration Ease | 4 | 3 |
| Transparency | 6 | 5 |
| Deployment | cloud | cloud |
| API Available | Yes | Yes |
| Platforms | Web, Mac, Windows, Linux, iOS, Android | Web, Mac, Windows, Linux, iOS, Android |
| Compliance | SOC 2 Type II, GDPR, ISO 27001, HIPAA (Enterprise Grid), FedRAMP (GovSlack) | SOC 2 Type II, ISO 27001, GDPR, HIPAA, FedRAMP |
Feature Comparison
Feature Comparison Matrix
21 features compared · 20 differences
| Feature | Slack | Microsoft Teams |
|---|---|---|
| Core | ||
| App marketplace (2,600+ apps) | Full | None |
| Breakout rooms | None | Full |
| Canvas (docs) | Full | None |
| Channels | Full | None |
| Chat and channels | None | Full |
| Clips (video messages) | Full | None |
| Direct messages | Full | None |
| File sharing (SharePoint) | None | Full |
| Huddles (audio/video) | Full | None |
| Meeting recordings and transcripts | None | Full |
| Screen sharing | None | Full |
| Teams Phone | None | Full |
| Threads | Full | None |
| Together Mode | None | Full |
| Video meetings | None | Full |
| Whiteboard | None | Full |
| Advanced | ||
| Automations | Full | None |
| Workflow Builder | Full | None |
| Integrations | ||
| API Access | Full | Full |
| Power Automate integration | None | Full |
| Slack AI | Full | None |
Pricing Comparison
Slack Pricing
90-day message history, 10 app integrations, 1:1 voice/video, 5GB storage
Unlimited history, unlimited integrations, group video (50), guest access, AI summaries
SSO, advanced AI features, compliance exports, 99.99% uptime SLA
Unlimited workspaces, DLP, eDiscovery, HIPAA, EKM, dedicated CSM
Microsoft Teams Pricing
Chat, video meetings (60 min), file sharing, 5GB storage
Meetings up to 30hr, 10GB storage, meeting recordings and transcripts
Web Office apps, custom email, 1TB storage, 10+ business apps
Desktop Office apps, webinars, Microsoft Loop, Clipchamp
Who Should Choose Which?
Who should choose Slack
Best for
- Teams wanting the most widely adopted messaging platform
- Organizations needing deep third-party app integrations
- Companies already in the Salesforce ecosystem
Avoid if
- You need persistent message history on a free plan
- You want a combined messaging + video conferencing solution
- You find per-seat pricing expensive for large teams
Who should choose Microsoft Teams
Best for
- Organizations already using Microsoft 365
- Enterprises needing video conferencing + chat in one platform
- Teams that rely heavily on Office apps (Word, Excel, PowerPoint)
Avoid if
- You want a lightweight, fast chat tool
- Your team doesn't use Microsoft 365
- You want the best third-party app integration ecosystem (Slack wins)
Switching Guidance
Switching from Slack
Common triggers to leave:
- •Per-seat costs at scale
- •90-day history limit on free plan
- •Notification overload
Potential blockers:
- •Massive integration ecosystem
- •Years of channel history
- •Team habits and workflows
- •Workflow Builder automations
Switching from Microsoft Teams
Common triggers to leave:
- •Not using Microsoft 365
- •Interface complexity
- •Want faster, lighter messaging
Potential blockers:
- •Deep Microsoft 365 integration
- •Meeting recording library
- •SharePoint file structure
- •Enterprise compliance setup
Try Slack
Start free — no credit card required
Try Microsoft Teams
Start free — no credit card required