A free program for Android, by coolrepairapps.

Subwoofer is an app that makes music sound much louder. It works on your Android phone or tablet.

The app consists of a small, easy-to-use interface with only one button.

Simply press the button to turn the sound louder, and if you have a Bluetooth speaker, the sound will be even louder.

If you are using a wired speaker, the sound will also be louder.

The app also works on headphones or earphones.

If you are using a Bluetooth speaker or headphones or earphones, the sound will be much louder.

This app is free, and it is not a subscription app. You can use it for free.

It is available in English, German, French, Spanish, Italian, Japanese, Portuguese, Russian, Korean, and Chinese.