If you are a fan of the Japanese idol group King & Prince, then you should definitely check out the unofficial app "Compatibility Test for Kinpri." Developed by tu.mu.gu, this simulation game is available for Android and can be downloaded for free.

The app allows you to take a compatibility test with your favorite Kinpri member or Ikemen Johnny's idol. You can answer a series of questions and get matched with your ideal partner based on your answers. The app also includes a feature where you can take a photo with your favorite idol and share it with your friends on social media.

Overall, "Compatibility Test for Kinpri" is a fun and entertaining app for fans of the group. However, it's important to note that this app is not official and is not affiliated with King & Prince or Johnny's Entertainment.