College entrance exams, qualification exams, corporate learning ...
What can be said in common to all
This app is essential for getting satisfactory results.

The usage of this app is as follows.
・ Solve the problem book as usual
・ Use this app to take pictures of wrong questions and their answers and explanations.
・ Use this app to repeatedly learn only the wrong questions.
・ Questions that cannot be answered disappear and you can pass any exam.
・ In addition, special secret functions support your learning


By using this app, the problems you cannot solve will disappear from the world.
You can now pass 100% of all exams.