aCalendar 2 runs on Android 5 (Lollipop) and later versions up to Android 10 (Q).

aCalendar 2 is reported to work on Chromebook, but we currently do not officially support this.

Older versions of aCalendar that are compatible down to Android 2.1 are still available in Google Play.

There is no iOS or iPhone version.

There is no Web or PC version.