A free program for Android, by KUCO Apps.
VolumeUp – Volume Booster is the best solution for people who want to get more out of their device.
The app is one of the best solutions for those users who want their device to be as loud as possible. With this app, you can manage the volume of your audio and play high-quality audio easily.
It’s a very simple application, it works by default and by default it works at maximum volume. However, if you wish to use it at a lower volume, just follow the instructions on this application, it’s very simple and easy to use.