Introducing the industry’s largest point payment cashbook
Easy installation and easy participation
Cash Book will tell you the correct answer and all you have to do is solve the problem!

There are many missions and quiz events so you can collect cash quickly.
We invite you to the most realistic app tech.

There are many events prepared as the industry's largest point payment open event in 10 to 20 seconds for solving the quiz!

Friend recommendation event attendance check event Very easy quiz questions!!

Just sign up now and you'll receive points that can be used like cash!
The industry’s largest point payment benefit!