Sonuvi source
Files & iCloud Drive
Play music you already keep on your iPhone or iPad, or make available through iCloud Drive.
Your files, your library
Sonuvi works with audio files you choose from the iOS Files app. Keep them on your device for reliable offline playback, or organize them in iCloud Drive and access them across your Apple devices.
Built into iOS
There is no separate server to configure. Select the files or folders you want to use, and Sonuvi keeps playback in the same player as your other music sources.