ExtraVolumeSimpleFine-tuning is a free Android application developed by Keshigoto under the multimedia category, specifically music and radio subcategory. This app is a simplified version of ExtraVolumeConfig, and it provides a solution for those who want to fine-tune their device's volume. It creates a simulated volume that doesn't exist originally, allowing users to adjust the volume level to their desired range.

One of the advantages of this application is that it can be used on a non-rooted terminal. It also has the function to automatically turn off advanced settings during a call. Users can display the settings in the notification bar through the shortcut. Moreover, this application has a setting screen display function that doesn't require screen transition. However, it's important to note that the app uses the equalizer function, and there's a possibility of unexpected behavior when interference occurs with other apps using the same function. The behavior may also differ from one terminal to another.