Airmail vs Sup
| Airmail | Sup | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $2.50/mo | — |
| Open source | No | No |
| Platforms | iOS, macOS | Linux, macOS |
| Free plan | Yes | — |
| Account limit | 1 accounts | — |
| Unified inbox | Yes | — |
| Offline access | Yes | — |
| Scheduled sending | Yes | — |
| Calendar tools | Yes | — |
| App coverage | — | desktop |
Both are listed in Best Email Clients. On Samsung Mobile US Press, Airmail scores higher on our published basis.