Learn Japanese grammar through structured units organized by difficulty. Choose between beginner or intermediate levels and select specific grammar topics.
by UNIVERSITY OF TSUKUBA★ 3.01 ratingsEducationFreeData updated 2026-09-10
Learn Japanese by reviewing correct and incorrect words with spaced repetition. Incorrect words are repeated more frequently and in varied contexts. Correct words are used to construct sentences and introduce new vocabulary.
Practice vocabulary and grammar with adaptive quizzes tailored to the user's English proficiency. Use the Rasch algorithm to adjust difficulty based on performance. Track progress over time and review explanations for correct answers.