For smart phone and tablet.

WRITE_SETTINGS permission needed to change the screen brightness automatically.

Simple Brightness Control smoothly adjusts the brightness of your device's screen throughout the day. No ambient light sensor required on the device.

Simply set the maximum and minimum values and this app will run in the background, continually adjusting the screen's brightness according to the time of day.

If needed, feel free to manually adjust the brightness of the screen at any moment, as this app intelligently adapts its behaviour to your input, smoothly transitioning the current brightness value to the desired one.

SIMPLE

Setting the maximum and minimum value is all the configuration needed. Simple Brightness Control will continue to adjust the screen brightness within the set range, capping the brightness value to the one configured. If the brightness is set beyond the defined range, manually for instance, the brightness will smoothly be adjusted back to within the range.
Lightweight, Simple Brightness Control will consume few resources from your device.

AUTOMATIC

The screen's brightness will automatically be adjusted according to the time of day. Running in the background, Simple Brightness Control will gradually adjust the screen's brightness, granting a smooth, hands-free experience.

SMART

Let's say you have an unusual day. You enter an exceptionally bright, or dark, room, and needs to adjust the screen brightness manually. Go ahead! Exceptions happens. Simple Brightness Control will acknowledge your input, and will smoothly adjust the screen brightness back to the usual schedule over time, without jarring transitions, or messing with its configuration. No longer you will forget setting the brightness to high and being surprised later with excessive clarity coming from the screen!