I haven't installed this app yet, as my major problems with Alien Dalvik are the sounds, and I think this app does not cover it yet.

Whatsapp has a sound level completely apart from SailfishX settings (Alien Dalvik in general? Or is it connected to the sound level of music?) So when silencing the phone, I have to go into Whatsapp to silence it too.

Another issue: listening to music over Bluetooth in the car. When I switch to HERE WeGo for traffic information, the sound level of music will drop, every time.

It would be great if you (or Jolla) could unify the controls of sound.