My suggestions

The app as a drive no doubt- the best app available in appstore. My suggestion is to add sleep cycle or just simple alarm clock to play ANY audio file from drive.It will be worth to spend 10 or 20 USD for possibility of listening my favorite music or lessons instead of paying 9.99 monthly for Musi Store subscription. Please consider.

Korekodwanny about Phone Drive: File Storage Sync, v6.3.9