kanshudo.com/words/mastery
Kanshudo is a platform for tracking Japanese vocabulary and kanji knowledge through personalized mastery wheels, flashcards, and study tools organized by JLPT levels and usefulness ratings.
Apps and toolsVocabularyKanji and kanaSpaced repetitionFreeHistoryGamesIntermediateBeginnerJLPTQuizzesTextbooksKanaPitch accentSentence patternsJLPT N5