khal vs Proton Calendar
| khal | Proton Calendar | |
|---|---|---|
| Free plan | Yes | |
| Free trial | No | |
| Paid from | Free | |
| Platforms | Linux | Android, iOS |
| Calendar sync | two_way | one_way |
| Free plan | Yes | |
| Shared calendars | Yes | |
| Scheduling links | Yes | |
| Mobile apps | ios and android | |
| Video meeting support | Yes |
Listed together in Best Calendar Apps