Kakugo

Learn Japanese easily with Kakugo! It offers quizzes for hiragana, katakana, kanji, and vocabulary. The app adapts to your pace using spaced repetition, whether you study 30 or 100 kanji daily. It's sorted by JLPT levels, has unlimited quizzes, no ads, and works offline. Great for commutes or focused learning. Open-source and always free!