Volume Booster: Sound Booster is a free Android app developed by EveryDay-Apps which helps to increase the volume of your device's speakers. This simple yet powerful app is designed to enhance your listening experience while playing music, watching videos, playing games, listening to audiobooks, or any other activity that requires sound output. With Volume Booster, you can boost the volume of your device by up to 200%, and it also comes with a bass booster, equalizer, and music player that allows you to customize your sound output. However, users should be careful when using this app as playing sound at high volumes can damage your hearing or break your speakers.