Red Moon Lite is a utility application designed to enhance sleep quality by filtering harmful blue light emitted from screens. The app features automatic activation when it gets dark, along with customizable settings for different scenarios, such as reading or watching movies. Users can save various profiles and control the intensity and hue of the blue light filter through three adjustable sliders. Additionally, a widget allows for quick access to darken the screen, and notifications enable easy control of the app.

With a focus on battery efficiency, Red Moon Lite automatically turns off when not needed and integrates seamlessly with the device's brightness settings. The user interface adheres to Material Design guidelines, ensuring an intuitive experience. However, the app requires specific permissions, including 'Draw over other apps' for filtering, 'Modify system settings' for brightness adjustment, and access to 'Approximate location' to determine sunset times.