Calendly vs Insightly vs Kustomer vs Zendesk
| Attribute | ||||
|---|---|---|---|---|
| Category | Events, Scheduling & Booking | CRM & Customer Management | CRM & Customer Management | Customer Support & Success |
| Pricing | Free tier | Free tier | Paid | Paid |
| Starting price | $10/month | $29/month | $89/month | $19/month |
| Free tier | Yes | Yes | No | Unknown |
| Free trial | Yes | Yes | Yes | Yes (14d) |
| Deployment | Cloud | Cloud | Cloud | Cloud |
| API available | Yes | Unknown | Unknown | Yes |
| Platforms | ios, android | — | — | — |
| Certifications | 4 | — | — | 9 |
| Integrations | 5 | 5 | — | 5 |
| Company | Founded 2013 | — | — | Founded 2007 |
| Feature attributes | ||||
| Sso Saml | ✓ Yes | — Unknown | — Unknown | ✓ Yes |
| Rbac | — Unknown | — Unknown | — Unknown | ✓ Yes |
| Mobile App | Ios And Android | — Unknown | — Unknown | — Unknown |
| Webhooks | ✓ Yes | — Unknown | — Unknown | ✓ Yes |
| Data Export | — Unknown | — Unknown | — Unknown | ✓ Yes |
| 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 | — Unknown | — Unknown | — Unknown | — Unknown |
| Ticketing | — Unknown | — Unknown | — Unknown | ✓ Yes |
| Live Chat | — Unknown | — Unknown | — Unknown | ✓ Yes |
| Knowledge Base | — Unknown | — Unknown | — Unknown | ✓ Yes |
| Ai Chatbot | — Unknown | — Unknown | — Unknown | ✓ Yes |
| Omnichannel | — Unknown | — Unknown | — Unknown | ✓ Yes |
Also consider
Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.