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CLUSTER JAPANESE-CHARACTERS-PRACTICE · 31 ENTRIES · EARLIEST ENTRY 2018-11-20

Japanese kana and kanji learning apps

This cluster consists of web and mobile apps for learning Japanese kana and kanji through quizzes, flashcards, worksheets, and adaptive practice. Dated entries are sparse and intermittent, appearing roughly once or twice a year from 2018 to 2026, with no clear concentration. The traction leader is kana-trainer with 68 stars, followed by kanabr with 39 stars.

Entry timeline

ENTRY TIMELINE

JAN 2018: 1NOV 2018: 1MAR 2020: 1AUG 2020: 1JAN 2021: 1FEB 2023: 1NOV 2023: 1MAY 2025: 1JUN 2025: 1JUL 2025: 1FEB 2026: 1MAY 2026: 1AUG 2026: 7SEP 2026: 11OCT 2026: 1
JAN 2018OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 ai-built · 2 hand-coded · 16 unlabelled

Operator · 9 hobby · 1 indie · 1 commercial · 6 open source · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01kana-trainer65★21 days—hobbyA cross-platform app teaches hiragana and katakana row by row using text and audio.
  2. 02kanabr39★2 moliveai-builtWeb app that offers adaptive Japanese kana typing practice, tracking per-character accuracy to generate lessons targeting weakest hiragana and katakana.
  3. 03Kakugo0★20 daysliveopen sourceMobile app that teaches Japanese hiragana, katakana, kanji, and vocabulary through adaptive spaced-repetition quizzes tailored to each learner's pace.
  4. 04kanji-otter1★3 dayslivehand-codedindieiPhone app that helps learners study Japanese JLPT kanji through gamified adventures, rhythm games, and photo-based kanji lookup for long-term practice.
  5. 05Kotoba3★1 molivehobbyAI-powered web app for learning Japanese through kana practice, flashcards, quizzes, translation, and beginner lessons.
  6. 06manabu0★10 days—hobbyMobile app that teaches Japanese from kana to JLPT N1 with stroke tracing, spaced repetition, and arcade games.
  7. 07manabu0★23 days—hobbyOpen-source mobile app that teaches Japanese kana, kanji, and vocabulary through spaced repetition, quizzes, and gamified progress tracking.
  8. 08raku_nihongolearning0★11 days—hobbyJapanese language learning web app for Vietnamese speakers that links vocabulary to kanji and uses spaced repetition and grammar exercises.
  9. 09kanji0★1 moliveWeb app for learning Japanese kanji characters with interactive exercises.
  10. 10n50★12 dayslivehand-codedhobbyFlashcard web app for practicing Japanese N5 vocabulary via kana recognition and romaji typing, featuring Vietnamese meanings.
  11. 11kanji-n50★28 days—hobbyOffline mobile app that helps Indonesian speakers learn beginner Japanese kanji through flashcards, quizzes, and stroke-order animations.
  12. 12Kanji-Tracker0★1 mo—Tracks kanji learning progress and study habits.
  13. 13n3kanji0★1 moliveai-builthobbyWeb app that helps learners master Japanese kanji through interactive lessons and exercises.
  14. 14Smouldering Durtles0★2 moliveopen sourceAndroid companion app for WaniKani kanji learning that adds advanced search, self-study quizzes, custom themes, and offline reviews.
  15. 15BasicKanjiPracticeApp0★1 yrabandonedlivehobbyWeb app that helps users practice and memorize basic Japanese kanji characters through interactive exercises.
  16. 16MyKanji0★1 yrabandonedliveopen sourceApp that helps users practice and memorize Japanese kanji characters through multiple-choice quizzes and progress tracking.
  17. 17Nihonoari: Hiragana & Katakana0★12 daysliveopen sourceJapanese kana learning app that teaches Hiragana and Katakana alphabets through practice exercises.
  18. 18Kanji Dojo0★7 mostaleliveopen sourceMobile app that teaches and drills Japanese kana and kanji characters through JLPT-level, grade-based, or custom study lists.
  19. 19renshuu - Japanese learning0★7 mostalelivecommercialJapanese learning app with adaptive study paths, kanji, quizzes, games, and community-generated lessons.
  20. 20The Kana Quiz0★2 yrabandonedliveopen sourceQuiz app to practice Japanese Hiragana and Katakana characters with customizable groups and a reference screen for learning.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.