Many thanks for the offer.
Since I don't know all the components of Swift yet, I think I've set my sights too high.
Creating a calendar app seems to be very complicated, which is probably the reason why the selection in the AppStore is not that big.
I thought that JTAppleCalendar provides the basic structure and then you only have to pass the data.
Then I will have to be satisfied with a calendar app from the AppStore.
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