Cal.com vs Slack vs Weave
| Attribute | |||
|---|---|---|---|
| Category | Events, Scheduling & Booking | Communication | Communication |
| Pricing | Free tier | Free tier | Paid |
| Starting price | $15 | $7.25/month | — |
| Free tier | Yes | Yes | No |
| Free trial | Yes | Yes | Unknown |
| Deployment | Hybrid | — | — |
| API available | Yes | Yes | Unknown |
| Platforms | — | — | — |
| Certifications | 3 | 8 | — |
| Integrations | 6 | 2 | — |
| Company | — | Founded 2009 | — |
| Feature attributes | |||
| Sso Saml | ✓ Yes | ✓ Yes | — Unknown |
| Rbac | ✓ Yes | ✓ Yes | — Unknown |
| Mobile App | — Unknown | — Unknown | — Unknown |
| Webhooks | ✓ Yes | — Unknown | — Unknown |
| Data Export | — Unknown | ✓ Yes | — Unknown |
| Calendar Integrations | ✓ Yes | — Unknown | — Unknown |
| Group Scheduling | ✓ Yes | — Unknown | — Unknown |
| Payment Collection | ✓ Yes | — Unknown | — Unknown |
| Routing Forms | ✓ Yes | — Unknown | — Unknown |
| Self Hosting | ✓ Yes | — Unknown | — Unknown |
| Video Conferencing | — Unknown | ✓ Yes | — Unknown |
| Team Messaging | — Unknown | ✓ Yes | — Unknown |
| Max Participants | — Unknown | — Unknown | — Unknown |
| Screen Sharing | — Unknown | ✓ Yes | — Unknown |
| Guest Access | — Unknown | — Unknown | — Unknown |
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Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.