Learn the 2136 Japanese characters designated as common-use Kanji by grade level. The app provides a rough estimate of the JLPT level based on the number of Kanji characters learned, as there is no precise data available for the JLPT test criteria. The levels are divided into 10 stages, ranging from elementary school 1st grade to high school level. Each character includes over 10,000 words.

The app includes various learning features such as checking the memorization status of each word, practicing writing, listening to pronunciation, learning word lists, studying word cards, and solving word problems. Note that the app is exclusively available for smartphones.

Regarding permission information, the app needs to connect to the app purchase verification server, and it distinguishes each device based on its ID.