FLStudio Mobile HD application. Connect your device to your PC via USB. Open iTunes. Go to your device entry on the right, then its apps tab, scroll
down and select - FLStudio Mobile HD in the File Sharing list ...
Android <--> Android. iOS <--> iOS transfers. Windows <--> Windows
Transferring Apps and in-app purchases between operating systems is not possible, more info:
I own an Android, iOS or Windows version ...