There is also iAPS, the AAPS-version but for Apple Devices; also take a look at Trio.

https://iaps.readthedocs.io/en/main/

https://docs.diy-trio.org/

But I like using Loop/LoopKit due its simple interface.

I didn't know about trio. Is there someone who has experience in both AndroidAPS and trio? My son would like to switch to Apple ecosystem but aaps keeps him in android.