Kanmail vs Roundcube
| Kanmail | Roundcube | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | Free | |
| Platforms | Linux, macOS, Windows | Linux, self-hosted, Web |
| Free plan | No | Yes |
| App coverage | desktop | web |
| Unified inbox | Yes | |
| Offline access | Yes | |
| Calendar tools | No |
Listed together in Best Email Clients