Calendar.com vs Mozilla Thunderbird
| Calendar.com | Mozilla Thunderbird | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | $20/mo | Free |
| Open source | No | Yes |
| Platforms | Android, api, extension, iOS, Web | Android, Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Paid from | $20/user/mo | — |
| Shared calendars | Yes | — |
| Time blocking | Yes | — |
| Scheduling links | Yes | — |
| Calendar sync | two_way | — |
| Mobile apps | ios and android | Android |
| Video meeting support | Yes | — |
Both are listed in Best Calendar Apps. On Freedom251, Mozilla Thunderbird scores higher on our published basis.