Open Circle is a free Android game developed by e-Umbricht. The game is very simple and easy to play. The objective of the game is to click on the screen and rotate the circle to catch as many bubbles as possible. The game is compatible with Android 9.0 and doesn't require any special permissions.

The game doesn't have any subcategory and falls under the Games category. However, it contains advertisements to support the developer's work. The game's developer, e-Umbricht, aims to create more apps like Open Circle and provide players with a challenging yet straightforward gaming experience.

Overall, Open Circle is a fun, casual game that can be played anytime, anywhere. With its simple gameplay and easy-to-use interface, it is suitable for all ages. So, if you're looking for a quick and straightforward game to play, give Open Circle a try.