This is extension for mMusic Audio Player application and cannot be used without mMusic Audio Player It is not supported by mMusic Mini. It allows to setup a timer to stop music playback automatically. It embeds into player main menu.
Stanislav Bokach is the developer of the app which can be found in the Music & Audio category. The most recent update of the tool was released on Mar 2, 2019 and mMusic SleepTimer was downloaded by over 1K users. This application was rated 4 on Google Play.
You can download the installation package of mMusic SleepTimer 1.0.2 for free and read users' reviews on Droid Informer. The app runs on Android 4.0 and higher. The app is completely secure for downloading.