All compatible apps
Thunderbird
macOSWindowsLinuxAndroidMailCalendar
A free, open-source email and calendar client that works great with Cirrux on every desktop platform, plus email on Android.
Visit websiteA note on Thunderbird for Android
On desktop (macOS, Windows and Linux), Thunderbird handles both your Cirrux mail and calendar. Thunderbird is also available on Android, but the Android app supports email only— it can’t sync your Cirrux calendar. On Android, pair it with a CalDAV-capable app such as DAVx⁵ for your calendar.