Rounded Corners S9 is a free and lightweight Android app that helps you customize the rounded corners of your screen. This app is perfect for users who want to emulate the look of high-end phones like Samsung Galaxy/S8 S8+/Note 8/S9, LG G6/V30.

One of the best things about this app is that it is very light and does not drain your battery. It is also incredibly easy to use. With just a few taps, you can customize the corner radius, color, and opacity of your screen corners.

Overall, Rounded Corners S9 is a great app for anyone looking to add a touch of personalization to their Android device. It is simple, elegant, and does exactly what it promises to do.