Faster falling asleep & relax
Night Mode app filters blue light that according to the latest research studies boosts alertness and may affect your natural sleep and wake cycles (circadian rythm). Additionally it precisely controls screen color temperature to setup the best light to calm down and relax.
Protect your eyes
When using your device at night or twilight, even minimum screen brightness may tire your eyes. Shift to Night Mode to turn on extra screen brightness reduction by dedicated dim filter as well as by main blue light filter.
Do not disturb others
If you sleep with other person or use your device in places where screen light may disturb others, this app is for you.
Read comfortable in bed
If you are night owl that uses your mobile in bed for browsing Internet or reading, this app can prevent turning off the screen as well as lock screen rotation to any orientation you like, even upside down.
Quick shift
Just shake your device to turn into Night Mode and back (this is additional feature to turn on in app's settings).
For Nougat users it's possible to add Quick Settings Tile to quickly shift to Night Mode.
Automatic scheduler can switch Night Mode by preferred time, for example turn on on twilight and off in the morning.
Save battery power
Night Mode lowers battery power consumption by reducing blue light and screen highlight.
Customization
Night Mode has many customization options like blue light filter color temperature, intensity, shaking sensitivity, notification visibility, pause duration, app theme and more.
Permissions
Draw over other apps – required to overlay the blue light filter.
Run at startup – to allow scheduling and keep filter on/off state during device restarts.
Network access – to allow bug reporting (optional) and showing ads (not many).

Accessibility Service
The app will ask you to enable the accessibility service.
Enabling the service is optional, but useful if you want to apply the blue light filter over notifications, lock screen, system navigation bar and some other system windows.
The app uses this service only to apply the filter over other apps.
The app does not collect data in connection with the accessibility service.