Step 1
On the Kalender page, select a calendar you wish subscribe.
Tap Wählen.
Most Android users have an account at Google, and many use Google Calendar. Therefore subscribing a calendar to an Android device is often identical to subscribing it to Google Calendar.
On the Kalender page, select a calendar you wish subscribe.
Tap Wählen.
You will be taken to Meine Kalender page. On the calendar you just added, tap and select Zum Google-Kalender hinzufügen.
You will be taken to Google Calendar. Log in if necessary.
Tap Add.
Updated 8 Feb 2023