GOS comes with two calendar "apps": "Calendar" and "Calendar Storage".
Neither seems to function as an actual app.
I'm testing a smart watch which references "calendar" which I guess is a file associated with one of these.
So questions are: "what are these, how does Android/GOS use them, why are they deleted (isolate users?); is there a calendar/scheduling app somewhere that does use them?"

    newbie24689

    You're right. The one calendar app is supposed to be a real functioning app, but its launcher was removed. It's the default calendar app included in Android's AOSP.

    I did a search on Matrix and found out why (this is a quote from the lead developer):

    GrapheneOS only includes AOSP Calendar to provide required intents used by other apps

    What this means is it allows things like share an event from one app, or event notifications, etc. That can include associating a file extension with the app, even if the app doesn't have an icon. Removing the app completely would break some basic functionality.

    The quote says why it's included but not why it's disabled. I'm guessing it's because the app is terrible and the GrapheneOS devs decided it's better if users find their own replacement.

      unwat and kyuweftea , THANK YOU for your quick replies, and informative answers!
      I'm guessing that GOS will return it to the launcher after AOSP repairs it.
      Thanks Again!

      4 months later

      Sorry to resurrect an old thread, but I'm having issues with the calendar that I think are related to this.

      I'm using a brand new install of GOS on a pixel 6 pro, and I chose to use the weawow weather app: https://play.google.com/store/apps/details?id=com.weawow

      It has a widget that shows date and time, and tapping on the date is supposed to bring up the calendar. It does bring up a calendar, but it's the stock one that was removed from the launcher instead of the calendar app I chose to install.

      I searched for a way to change the default calendar for GOS, but haven't found anything. Any tips?

      The calendar app you are using has to be set up to respond to the calendar intent that the weather app calls.

      I would hope that the weather app would call a common standard calendar intent.
      I would hope that the calendar app would respond to common standard calendar intent calls.
      Unfortunately it sounds like one of those things isnt happening.

      Unfortunately its a bit old, but if you are interested to see/find out a bit more of whats happening you can likely see the intent using
      https://github.com/k3b/intent-intercept