Hiver vs Opterius Mail
| Hiver | Opterius Mail | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | $25/mo | Free |
| Open source | No | No |
| Platforms | api | Web |
| Free plan | Yes | Yes |
| Paid from | $25/user/mo | — |
| App coverage | — | web |
Both are listed in Best Email Clients. On Inferse, Hiver scores higher on our published basis.