Night Screen

2.2.0

Night Screen is a very handy tool that gives users a way to protect their eyes while using mobile devices. Read more about Night Screen  

Some user might not know this, but looking at a bright display in a very dark environment is actually harmful to the eyes. One of the solutions is to turn down the brightness, but that’s not always sufficient. It turns out that some devices can’t reduce the brightness enough.
 
This is where the Night Screen app comes into play. It creates a mask on top of the screen that dims the brightness even more. The developers even recommend avoiding spending time looking at the screen in dark environment, if it’s possible.
 
The application is completely free and open source.