Screen Filter (Night Mode)

The main goal of this app is to reduce the brightness of the screen below the minimum level allowed by default. An overlay filter is applied as a mask to act as a dimmer. It can protect your eyes from pain and also prevent headaches, resulting in sound sleep at night.

It comes with a ton of filters as well, and you can choose any one as you wish.

Link to pro version (with more features) - https://play.google.com/store/apps/details?id=com.saha.screenfilternightmodepro

Features:
- easy to use;
- tons of filters available
- restore default brightness settings after filter is stopped
- buttons available in notification bar for easy pause and start
- default blue light filter prevents headaches and protects the eyes at night

Known Issues - Installing an app from an APK file will not work due to an Android restriction. The only possible solution currently is to pause the filter from the notification bar, finish the installation and resume the filter again.