Clickatell SMS API vs Sinch Verification API
| Clickatell SMS API | Sinch Verification API | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, Web | Web, iOS, Android |
| Pay-as-you-go | — | Yes |
| SMS API | — | Yes |
| Delivery status | — | Yes |
| Webhooks | — | Yes |
Both are listed in Best Transactional SMS Software. On Freedom251, Clickatell SMS API scores higher on our published basis.