I present Dozzzer 2.0. There are a lot of changes in this release, most of them under the hood, but a few are quite visible such as the completely revisited design throughout the app.
The behavior for playing in background has been changed as well. Before it kept reducing the volume until you quite the app (remove the from your recent apps that is). Now the app quits automatically as soon as you pause the music (if it’s running in background).
If you don’t already have the app you can get it here: App Store.