A small open source application designed to enhance user control over screen brightness. Initially it was developed to make the screen as dim as possible to save battery on old devices. AND to provide a simplest possible user interface without any complicated calibration procedures and so on.
It is Beta version now. It has ascetic interface and very simple in use.
Source code, issue tracker and latest APKs are available here: http://bitbucket.org/gyrussolutions/yaab/
Google Play link: https://play.google.com/store/apps/d...biz.gyrus.yaab
Any feedback is highly appreciated, especially from other Android developers