|Google Play:||Check if it's there|
Hello Music can download from the Youtube app via the share menu – and lets you list, display and open music from within the app.
Note: development is currently stalled.
NonFreeDep: The application depends on a non-free application (e.g. Google Maps) - i.e. it requires it to be installed on the device, but does not include it.
NonFreeNet: This application promotes or entirely depends a non-Free network service.