Thanks for the helping hands, Extnctn6!
@dubc1984
We have a full article available, which informs about the limitations of Inter-App Audio: Limitations of Inter-App Audio - Cubasis - Steinberg Forums
In our view, Apple’s Audio Unit format comes with more flexible features and seems to be the successor of their previous IAA standard. Luckily, many app vendors already offer their instruments and effects apps in this format.
Best,
Lars