# Unable to view or add non Google Calendars in Android app **URL:** \ **Category:** Get Pebble Help!\ **Created:** [April 16, 2026, 9:12pm UTC](https://forum.repebble.com/t/unable-to-view-or-add-non-google-calendars-in-android-app/497 "2026-04-16T21:12:41Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![bptillman](https://avatars.discourse-cdn.com/v4/letter/b/9f8e36/32.png) [@bptillman](https://forum.repebble.com/u/bptillman)\ **Post date:** [April 16, 2026, 9:12pm UTC](https://forum.repebble.com/t/unable-to-view-or-add-non-google-calendars-in-android-app/497/1 "2026-04-16T21:12:41Z")
I am using a Pebble Time with the new Pebble Android app on a new Pixel 9a running GrapheneOS and have updated my PT to the latest OS as well, but currently when I go to the Calendar settings to configure it shows zero calendars. I have Proton Calendar installed on my phone and it is syncing, and the Pebble app has the Calendar permission. I tested out installing the Google Calendar app and once I added that, then the calendars I have in that show up, but still not my Pronton Mail calendar. I am not certain if this is an issue in the new app, my running Graphene OS, or perhaps something else? Any help would be greatly appreciated. ---
**Author:** ![pbhgl](https://avatars.discourse-cdn.com/v4/letter/p/77aa72/32.png) [@pbhgl](https://forum.repebble.com/u/pbhgl)\ **Post date:** [April 17, 2026, 4:58pm UTC](https://forum.repebble.com/t/unable-to-view-or-add-non-google-calendars-in-android-app/497/2 "2026-04-17T16:58:46Z")
While I don’t know if / how the Proton calendar can be used with the Pebble Android app, I have a Pixel 9a, too, running GrapheneOS. So I can at least describe what works for me: I use the [Etar calendar app](https://f-droid.org/en/packages/ws.xsoh.etar/) from F-Droid with [DAVx⁵](https://f-droid.org/packages/at.bitfire.davdroid/) and a self-hosted Nextcloud calendar. This works well with the Pebble, and the calendars show up in the Pebble app settings. Offline calendars with Etar can be used, too. ---
**Author:** ![moi\_mm](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@moi\_mm](https://forum.repebble.com/u/moi_mm)\ **Post date:** [April 18, 2026, 1:50pm UTC](https://forum.repebble.com/t/unable-to-view-or-add-non-google-calendars-in-android-app/497/3 "2026-04-18T13:50:54Z")
I think that the issue is from Proton, they are not using Android Calendar local Sync (there is a feature request but no news from it). The only way I find is to share the Proton Calendar calendar to a calendar app that syncs with the local Android Calendar API, which breaks a little the Proton main goal ---
**Author:** ![MoiraPrime](https://yyz1.discourse-cdn.com/flex033/user_avatar/forum.repebble.com/moiraprime/32/393_2.png) [@MoiraPrime](https://forum.repebble.com/u/MoiraPrime)\ **Post date:** [April 28, 2026, 10:56pm UTC](https://forum.repebble.com/t/unable-to-view-or-add-non-google-calendars-in-android-app/497/4 "2026-04-28T22:56:14Z")
I think being able to make the Proton Calendar app the default Android calendar app was something they announced for their 2026 roadmap. Maybe that will solve this? ---
**Author:** ![chiraag](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@chiraag](https://forum.repebble.com/u/chiraag)\ **Post date:** [September 13, 2026, 8:27pm UTC](https://forum.repebble.com/t/unable-to-view-or-add-non-google-calendars-in-android-app/497/5 "2026-09-13T20:27:10Z")
> [@moi\_mm](#): > > The only way I find is to share the Proton Calendar calendar to a calendar app that syncs with the local Android Calendar API, which breaks a little the Proton main goal Sorta. I would never (e.g.) sync it with Google, but a local sync (that doesn’t leave the device) using ICSx5 is just as privacy-preserving (I mean…your calendar items are decrypted on your phone anyway). I just don’t want that getting synced up to another server like Google or Microsoft. I just set up calendar notifications using ICSx5 and it’s great 🙂. I used the share feature in Proton Calendar to get a read-only ICS URL which I imported into that app. Definitely a kludge, but something that’s more than sufficient for me. I have the Proton Calendar app anyway, so I can add an event on there, force-sync in ICSx5 (or just wait for it to auto-sync), and voila it will show up on my Pebble at the right time.