JIS Perfectice is a Japanese language learning application developed to help you learn the Japanese language more efficiently and effectively. It is based on a concept called "Test and Practice", which is the most important and core concept in this app.

The idea behind "Test and Practice" is that we learn by doing and practicing. The more you practice, the better you will become. This is the main concept of this app.

There are over 30,000 questions in this app, and each question has a number of possible answers. You will be able to practice answering these questions, and if you get the answer wrong, you will be able to see what the correct answer is.

After you answer a question, you will be able to see how you performed, and you will also be able to see how the correct answer is.

This app will allow you to learn the Japanese language faster and more efficiently, and it will help you improve your Japanese-language skills.