Kanji Dojo: Efficient Japanese
Kanji Dojo: Efficient Japanese Summary
Kanji Dojo: Efficient Japanese is a with in-app purchases Android app in Education by Yaroslav Shuliak. Released in May 2022 (3 years ago). It has about 66K+ installs and 1.9K ratings with a 4.78★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 1.8K monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Feb 25, 2026.
Recent activity: 556 installs this week (1.7K over 4 weeks) showing steady growth , and 11 new ratings this week View trends →
Store info: Last updated on Google Play on Feb 25, 2026 .
4.78★
Ratings: 1.9K
Screenshots
App Description
Open source app to learn Japanese characters and vocabulary
Learn how to write Japanese characters, memorize the correct stroke order, practice recalling meanings and readings of kana and kanji using flashcards with vocabulary examples. Keep studying anywhere, anytime without wasting tons of paper
Main Features:
• Suitable for absolute beginners and advanced users - can study hiragana, katakana and kanji
• Flexible learning process: follow JLPT levels, school grades or Wanikani levels, or mix all of them!
• Rich kanji coverage, more than 6000 characters in total and many more words are available
• Uses a Spaced Repetition System to help retain learned information
• No paid or locked content
• Includes dictionary with a search function
• The app is open source, you can suggest new features and collaborate on development
The app uses the Spaced Repetition System (SRS) - a highly effective learning method that optimizes the timing of reviews based on how well you remember information. You can set a daily limit to control your workload at a comfortable level and enable daily notification reminder in the application's settings to stay consistent and make sure that memorized information is retained
Good luck on your way to mastering Japanese!