Use APKPure App
Get Brightness old version APK for Android
The simplest brightness management tool.
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 their values.
This app only needs single permission - to modify device settings. No ads, no "read your sms" or other malware. Brightness app does only one thing - changes brightness.