Quizzes are generated based on key content from books. We provide various types of questions to help you effectively review what you've read. Quizzes are updated through our internal system and reviewed by our internal team.

The iPhone app has already been released. The Android app is scheduled to launch in January. To be the first to receive launch news, please register your email through the 'Download App' button.

We are integrated with the databases of major domestic bookstores, so you can search for most published books.

Currently, quiz results are not saved on the website. To record books you've read, download the app where you can check all quiz records and statistics.

The service is basically provided for free. To use premium features in the app, you can subscribe to a premium plan.