This app from Nihonoari helps learners memorize and practice Japanese hiragana and katakana.
Open source
24 alternativesKakugo
Kakugo helps learners memorize Japanese hiragana, katakana, and kanji through tests that adapt to their pace.
About Kakugo
Kakugo is an open source application for learning Japanese hiragana, katakana, kanji, and vocabulary. It includes several quiz types, including kanji quizzes by reading and meaning, a kanji test by part composition, a kanji writing test, and vocabulary quizzes. Its spaced repetition method adapts to the learner's pace, and sessions can be started and finished at any time rather than following a fixed daily list.
The homepage states that the app does not use internet access and that no data is uploaded. Progress and settings are saved on the device. Tapping a kanji opens the aedict3 dictionary, which the page describes as non-free, or jisho.org, which are external services. The interface is listed in English, French, Spanish, and German. Download links for F-Droid and Google Play appear on the page. Pricing is unknown.
Key features
- Hiragana and katakana quizzes
- Kanji quizzes by reading and meaning
- Kanji test by part composition and kanji writing test
- Spaced repetition that adapts to the learner's own pace
- Similar-looking kanji shown in answers to highlight differences
- Kanji and vocabulary sorted by JLPT level
Best for: Learners of Japanese who want to memorize kana, kanji, and vocabulary through adaptive quizzes, including those who practice in short sessions.
Good for
- Open source under the GPL-3.0 license
- The homepage states that the app has no ads and does not require internet access
- Sessions can be started and ended at any time, with no fixed daily list
Watch out for
- The built-in dictionary option, aedict3, is described as non-free
- Tapping a kanji sends the learner to external sites (aedict3 or jisho.org)
- The interface is listed in only four languages: English, French, Spanish, and German
Kakugo at a glance
- Website
- github.com/blastrock/kakugo
- Category
- Education & Learning › Language Learning
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Kakugo alternatives
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Kakugo FAQ
Does Kakugo need an internet connection?
The homepage states that no internet access is required and that the app does not use internet access.
What data does Kakugo store?
The homepage states that the app does not collect personal data. Only progress and settings are saved on the device, and no data is uploaded to the internet.
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