Cal.com vs Discord vs Mattermost vs Rocket.Chat
| Attribute | ||||
|---|---|---|---|---|
| Category | Events, Scheduling & Booking | Communication | Communication | Communication |
| Pricing | Free tier | Free tier | Free tier | Paid |
| Starting price | $15 | $2.99/month | $10/month | $0/month |
| Free tier | Yes | Yes | Yes | No |
| Free trial | Yes | No | Yes | No |
| Deployment | Hybrid | Cloud | Cloud | Cloud |
| API available | Yes | Unknown | Unknown | Unknown |
| Platforms | — | ios, android, windows, macos | ios, android, windows, macos, linux | ios, android, windows, macos, linux |
| Certifications | 3 | — | — | — |
| Integrations | 6 | 3 | — | — |
| Company | — | Founded 2015 | Founded 2015 | — |
| Feature attributes | ||||
| Sso Saml | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Rbac | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Mobile App | — Unknown | — Unknown | — Unknown | — Unknown |
| Webhooks | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Data Export | — Unknown | — Unknown | — Unknown | — Unknown |
| Calendar Integrations | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Group Scheduling | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Payment Collection | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Routing Forms | ✓ Yes | — Unknown | — Unknown | — Unknown |
| Self Hosting | ✓ Yes | — Unknown | — Unknown | — Unknown |
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.