Kakugo

Kakugo makes learning Japanese fun with quizzes on hiragana, katakana, kanji, and vocabulary. It adapts to your pace using spaced repetition, whether you're studying 30 or 100 kanji daily. Features include JLPT sorting, unlimited quizzes, and no ads. It's perfect for commutes or focused study, open-source, and works offline. Start learning anytime!