Pixoff: Battery Saver is a free Android application to save your phone's battery life. It works by applying a filter that turns off pixels on your screen. This feature helps you save battery life as black pixels do not require any power. The app also comes with a night filter, which reduces blue light and allows you to put a true black wallpaper to further reduce battery consumption.

The app is easy to use and does not require any complicated settings. Pixoff: Battery Saver also offers a fix for detected screen overlay on Android 5.1. If you encounter any bugs, you can report them to Pixoff Google Community.

Overall, Pixoff: Battery Saver is a useful tool for anyone looking to extend their phone's battery life.