Equalizer is a free Android app developed by G. Kainz that enhances the sound of your phone or tablet. This simple and small app allows you to customize your audio experience as you like. With no ads and no permissions required except for audio, Equalizer is a great choice for those who want a straightforward sound enhancement app.

The app comes with built-in presets and a bass boost feature to further enhance your audio experience. You can also access the app quickly through the icon in the notification bar. Equalizer saves your settings automatically when you exit the app, making it easy to pick up where you left off. Additionally, the app supports Bluetooth devices for an even better listening experience.