Im having a calendar inside my app and it is possible to synchronize that calendar with the apple calendar app on iOS (it then automatically synchronizes with icloud if enabled).
Now I want the same for the google calendar app on iOS but all I could find for now is the google calendar web API. The problem: you need to be online for that but my App should have a full offline support. So I thought maybe it would be possible to access the iOS google calendar app installed on the device to add / remove / modify events.
Is it possible to do so or is there now API for the iOS google calendar app?
There is currently no API that allows you to interact with the Google Calendar App for iOS.
The samples seen here are specifically for interacting with the Google Calendar service, not with the Google Calendar for iOS app itself.