MessageFlow SMS API vs Sinch SMS API
| MessageFlow SMS API | Sinch SMS API | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | api |
| Free plan | No | — |
| SMS API | Yes | — |
| Delivery status | Yes | — |
| Webhooks | Yes | — |
| Two-way messaging | Yes | — |
| Monthly message limit | 0 messages/mo | — |
Both are listed in Best Transactional SMS Software. On Samsung Mobile US Press, Sinch SMS API scores higher on our published basis.