A free program for Android, by JeongHean Kim.

This app will be useful for beginners and people who want to practice their Japanese. You will learn the basics of Japanese, such as vocabulary, grammar, phrases, etc. 

We provide the JLPT test in a format that can be easily understood. You will be able to check your knowledge by taking the test and getting your score.

In addition, we provide the total amount of words that you have learned, the number of words you have learned for each category, the number of words that you have learned for each JLPT level, and the percentage of your score for each level.

You can easily learn Japanese by listening and watching.