GNOME Calendar vs Thunderbird: catalog facts
 GNOME Calendar |  Thunderbird |
|---|
|
Free Free GNOME application supported by donations. |
Free Free forever, funded by donations. |
|
Linux |
Windows, macOS, Linux, Android |
- Syncs with Nextcloud, Google Calendar and CalDAV servers
- Local calendars work fully offline
|
- Unified inbox across every account, or each account kept separate, your choice
- Mail, calendar, contacts and tasks in one application rather than four
|
- Designed for the GNOME desktop on Linux
- Kept deliberately simple, with fewer features than full groupware clients
|
- The interface carries a lot of history and can feel dense next to a webmail tab
- Major ESR releases have historically been disruptive for add-ons and settings
|
|
Downloadable app |
Downloadable app |
|
Open source |
Open source |
|
License not stated |
License: MPL-2.0 |
|
No account needed |
No account needed |
|
Works offline |
Works offline |
Checked October 1, 2026 | Checked September 20, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
Copy comparison link
