Fline is a free Android application developed by Gordey Max in the Utilities & Tools category. It is compatible with Android 9.0 and provides an easy way to control the sound and brightness of your smartphone's screen. With just one click, you can access the sound and brightness controls and adjust them to your liking.

The main features of Fline include the ability to click the sound or brightness button to access the control line. You can then easily change the sound volume or brightness of your screen. Overall, Fline is a simple and straightforward app that does what it promises without any unnecessary frills or complications.