You only need one touch to change current display brightness to one of the predefined values or select the "Auto" mode, if device has a light sensor.
Press and hold any of the buttons to change its value.
This app is only need the one permission - to change device settings. No "internet", no "call log", no "sms" or other malware. Brightness app does only one thing - change brightness.</br></br></br></br></br></br>