Radii-Sketchware UI Designer is a lifestyle app developed by Custom Roms Nation for Android 9.0. It is designed to modify the appearance of Sketchware apps by adding corners and radii to different views. The app provides users with precise control over the customization of their app's user interface.

Radii-Sketchware UI Designer allows users to modify almost every aspect of their app's views, including buttons, text boxes, and images. The app features a live preview that enables users to see the effects of their modifications in real-time, ensuring that they get it right the first time. With Radii, users can create visually appealing Sketchware apps with ease.

Overall, Radii-Sketchware UI Designer is a useful tool for those looking to create visually appealing Sketchware apps. Its precision and live preview feature make it a must-have for those looking to customize their app's user interface.