A free program for Android, by Diao Hongsheng.
Have you ever wanted to filter the light at night to feel cozy and comfortable? If you are using your phone at night, the strong brightness of your phone will make your eyes tired and affect your health. The Eye Filter app can help. It can dim the screen for you if you want. It helps adjust color temperature, shields harsh light, and reduces eye strain caused by blue light, protecting your eyesight and helping you sleep better at night. One of the best features of Eye Filter is that you don't need to install another screen filter, adjust the screen brightness or worry about whether you've locked your application. All you have to do is open the app and slide the toggle button to enable or disable it.
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