It is an application specialized in reviewing past questions with the number of recorded questions No1. It also includes afternoon and practical tests. It is a popular app for those who want to "learn new questions at home" or "learn past questions with an app on the go". This application can be used for the purpose of reviewing after the basic learning by yourself and establishing the knowledge. 【concept】 ・Check the overwhelming problem volume. ・Dividing learning books and learning apps -Ple