Learn & practice writing Japanese characters
About this app
Learn & practice writing Japanese characters
Features - Study kana (both Hiragana and Katakana) and kanji - Practice by following JLPT levels or school grades - Create your own list to study, more than 6000 characters in total are available - Works offline
Licensed under GPL-3.0-or-later, by Yaroslav Shuliak.
What's New in v2.2.1
Imported from the F-Droid repository index.
- - Performance optimization (by kedtol)
- - Removed grades on the writing summary screen
- - Increased default desktop window size
- - Small update of the Account screen
Version history
Mar 9, 2026 · 24.2 MB · Android API 26–36 · code 2210
Imported from the F-Droid repository index.
- - Performance optimization (by kedtol)
- - Removed grades on the writing summary screen
- - Increased default desktop window size
- - Small update of the Account screen
SHA-256 60e83831865cc1a7cc97ce9fe78324cfed22cb145debc486a8fb129545876684
Jan 10, 2026 · 24.2 MB · Android API 26–36 · code 2200
Imported from the F-Droid repository index.
- - Added daily SRS reset time in Settings
- - Added option to show kana reading during vocab writing (by cartr)
- - Fixed wrong vocab reading used in practice for some edited vocab cards
- - Fixed dropdown behaviour on vocab edit screen
- - Fixed issue preventing account switching without app restart
SHA-256 06949f74f9274b05e870b0d9804a2c9e861dac5222572866554ebcf054ea2dd3
Aug 17, 2025 · 24.1 MB · Android API 26–36 · code 2190
Imported from the F-Droid repository index.
- - Added furigana for sentences
- - Improved sentences ranking
- - Added saving for the last selected shuffle and new cards order practice configurations
- - Added more detailed card suggestions for text analysis for words with multiple dictionary entries
- - Added clipboard copy and Jisho search for unknown dictionary terms
- - Added readings shuffling for each review when doing reading picker vocab practice
SHA-256 923542a845ddeee62b7f30c4a4c03e41d40df04606ee9e50b1c62311d75e3715
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be ua.syt0r.kanji.fdroid is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2.2.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Kanji Dojo first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Kanji Dojo, and a listing is removed when the evidence for it stops holding up.
Get Kanji Dojo
Every source we list for ua.syt0r.kanji.fdroid is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
60e83831865cc1a7cc97ce9fe78324cfed22cb145debc486a8fb129545876684
Signing certificate
5ad10466f09ea3c4f7c5004268cd54da7af37c094e2d94cd91dd8894d99fb0dd
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.