itunes - Simplest way to get an audio file from an iOS app into the user's music library without violating app store terms -

itunes - Simplest way to get an audio file from an iOS app into the user's music library without violating app store terms -

i'm making ios app in i'd allow user save sound file (a specific file app uses internally, not arbitrary sound file) music library can play other apps on device. ideally i'd save sound straight users music library, seems other similar questions not possible. file sharing itunes seems next best solution.

is there using itunes file sharing alternative saving sound in way violates app store terms?

is path of to the lowest degree friction user, or there way accomplish i'm missing?

ios itunes fileshare