Speaker Booster Plus

Speaker Booster Plus is an app that helps you control and turn the volume of your smartphone up as high as it will go.

The way Speaker Booster Plus works is extremely simple. It had two main volume controls: one wheel that lets you turn the volume up or down like you would with your phone's normal volume buttons, and then a boost bar that pushes the limits of your speakers and increase the max volume of your Android smartphone or tablet. Also, it has three buttons at the bottom that let you mute, set normal volume (without boost), and turn the volume up to the max (with boost as high as possible).

Although this app can't actually make your speakers play sound any louder than they're capable of by design, it is an interesting app for controlling the volume. If you don't want to turn your volume up and down like everyone else, and you prefer an alternative, Speaker Booster Plus is a great app that offers just that.