app transfer to new phone missing files
I set up my new XR from my 6s using the auto transfer / set up method. The app in question is a music creation app that uses sound banks you can download thrü that app. The sound bank i use developed a bug so it is not available for download any longer. Support from the company is invisible. Since the transfer between phones uses (i deduce) either the cloud and or iTunes.. the app in question transferred to my new phone but without that sound bank file.. because it’s corrupted and not available to users for download any longer. The app functions perfectly with said sound bank on my iphone 6s, but the phone is on its last leg.
The app transferred to my new iPhone and works perfectly but it doesn’t have that sound bank so I can’t play any of the hundreds of songs I created. How can I get this app transferred from my iPhone 6 with all the files including that sound bank directly to my new iPhone XR?
iPhone XR