Exactly as it says in the title this is a simple black screen with absolutely no clutter so that you can turn your screen black without having to lock your phone which may stop some background apps from working.
This app is completely ad-free and does not require internet access or any special permissions at all so you can sleep safe knowing that it is not accessing your personal information without your permission.
This also saves a huge amount of battery on screen.


FEATURES
1. Makes screen perfect black ( #000000 ).
2. Hides notification panel.
3. Hides navigation buttons.
4. Prevents screen from sleeping.
That's all.