You're welcome. The Android app is pretty good, but for iOS it remains unreleased, so you have to deploy yourself. Prologue seems to be the best iOS App.
There are other unofficial Clients (e.g. in flutter), but I tend to use audiobookshelf as streaming player paired with vlc to play downloaded offline files (the app is not so great here)
There is a paid audiobook shelf client on iOS… I think it is like a one time $5 or something. Totally worth it to me, it has worked great and I don’t have to do the bullshit test app stuff (which stopped working for audiobookshelf anyway because too many people were using the test app)