BlueMail vs K-9 Mail
| BlueMail | K-9 Mail | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | Free | Free |
| Platforms | Android, iOS, Linux, macOS, Windows | Android |
| Free plan | Yes | Yes |
| App coverage | all | mobile |
| Unified inbox | Yes | Yes |
| Offline access | Yes | Yes |
| Calendar tools | Yes | No |
| Scheduled sending | No |
Listed together in Best Email Clients