Sound Booster For Headphones for Android
After going through about every headphone volume booster u found this app. Omg it's amazing
Didn't do anything and requires strange permissions. Also gave a funky warning when uninstalling. Needed something to increase power to headphone jack. This apparently doesn't do that, so I question how it actually does work. Also has intrusive pop ups that demand giving permissions or ratings. I distrust this.
by P####:
Works really well. Recommended if you are looking for a volume booster