CF.lumen

CF.lumen is an app that, once installed, can adjust the color and brightness of your Android's screen automatically based on the position of the sun. For example, in the morning, you'll have a blue tone that will help you wake up. At night, however, your screen will have a red tone that's easier on your eyes.

In the options, you can set different color filters for your device. Thanks to these filters, you can customize your experience, regardless of the time of day. You can find filters that are warm, cold, gray scale, and more.

CF.lumen is a very useful app if you use your Android device often, and especially if you tend to use it at night.