ClrStream vs Postmark
| ClrStream | Postmark | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | Yes |
| Paid from | — | $5/mo |
| Open source | No | No |
| Platforms | Web | api, Web |
| Delivery methods | both | — |
| Free plan | — | Yes |
| Paid from | — | 15 /mo |
| Dedicated IP option | — | Yes |
| Monthly send limit | — | 10,000 emails/mo |
Both are listed in Best Transactional Email Software. On Inferse, Postmark scores higher on our published basis.