Screen Filter is a free utility tool developed by PyroByte Studio for Android 9.0 users. This program is a simple yet effective solution to reduce power consumption and low light glare. It works by applying a black tinted filter to your device's screen, making it easier on the eyes in low light conditions.

This program is incredibly easy to use. Once you tap the screen filter, it opens up all the settings in PREVIEW ONLY mode. From there, you can adjust the brightness by moving the slider and set the screen filter by pressing the SET button. If you want to turn it off, simply press the CLEAR button. Additionally, you can access the screen filter settings by re-opening the application or tapping the notification in the notification list.

Overall, Screen Filter is a no-frills application that does what it promises. If you're looking for a simple solution to reduce power consumption and low light glare, this program is definitely worth checking out.