Japanese Kanji Learning: 2136 Characters allows users to study the 2136 commonly used kanji characters in Japanese, arranged by grade level. The app indicates the approximate JLPT proficiency level based on the character's complexity, with levels ranging from elementary to high school standards.

With a total of 10 levels, from elementary grades 1 to 6 (JLPT N5 -> N3) to middle school (JLPT N2) and high school levels (JLPT N1), users can progress through a comprehensive kanji learning experience. Each character includes over 10,000 associated words for in-depth vocabulary expansion.

The app features various study functions, including checking the memorization status of each word, listening to word pronunciations, practicing writing, studying word lists, using flashcards, and solving word puzzles.