Google Chat vs Mattermost vs Slack vs Stream
| Attribute | ||||
|---|---|---|---|---|
| Category | Communication | Communication | Communication | API Management |
| Pricing | Free tier | Free tier | Free tier | Free tier |
| Starting price | $7/month | $10/month | $7.25/month | $0/month |
| Free tier | Yes | Yes | Yes | Yes |
| Free trial | Yes | Yes | Yes | Yes |
| Deployment | Cloud | Cloud | — | — |
| API available | Unknown | Unknown | Yes | Unknown |
| Platforms | — | ios, android, windows, macos, linux | — | — |
| Certifications | — | — | 8 | — |
| Integrations | — | — | 2 | — |
| Company | — | Founded 2015 | Founded 2009 | — |
| Feature attributes | ||||
| Sso Saml | — Unknown | — Unknown | ✓ Yes | — Unknown |
| Rbac | — Unknown | — Unknown | ✓ Yes | — Unknown |
| Mobile App | — Unknown | — Unknown | — Unknown | — Unknown |
| Webhooks | — Unknown | — Unknown | — Unknown | — Unknown |
| Data Export | — Unknown | — Unknown | ✓ Yes | — Unknown |
| Video Conferencing | — Unknown | — Unknown | ✓ Yes | — Unknown |
| Team Messaging | — Unknown | — Unknown | ✓ Yes | — Unknown |
| Max Participants | — Unknown | — Unknown | — Unknown | — Unknown |
| Screen Sharing | — Unknown | — Unknown | ✓ Yes | — Unknown |
| Guest Access | — Unknown | — Unknown | — Unknown | — Unknown |
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.