Offline Japanese dictionary
About this app
Sumatora has the following distinctive features: * very fast search and display of exact term/term at the beginning/term included * bookmarks and bookmark export/import * search selected text in applications using contextual menu (or sharing) * multilingual search (supports English, German, Russian, Spanish, Dutch, Hungarian, Swedish, Slovenian and French).
Licensed under GPL-3.0-or-later, by Nicolas Centa.
What's New in v0.4.7.5
Imported from the F-Droid repository index.
Version history
Jul 2, 2026 · 69 MB · Android API 29–35 · code 36
Imported from the F-Droid repository index.
SHA-256 299a489e8034cf1f4278d70bd041a5b84cbcffc5077f8ced13f3672b094bf913
Jun 30, 2026 · 62.9 MB · Android API 29–35 · code 35
Imported from the F-Droid repository index.
SHA-256 aaff458d9483a2f3c6feb323367a3022aaaec502c7f53556687ca884b4845c09
Dec 7, 2020 · 57.6 MB · Android API 14–30 · code 31
Imported from the F-Droid repository index.
SHA-256 6c3cca0f08c0c410423d4d5542486cd056d6817e3bd79511240a1f380c3a603e
Will it run on your device?
74%
- Targets newer Android builds, so legacy devices may be excluded.
- 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 org.happypeng.sumatora.android.sumatoradictionary 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, 0.4.7.4 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Sumatora 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 Sumatora, and a listing is removed when the evidence for it stops holding up.
Get Sumatora
Every source we list for org.happypeng.sumatora.android.sumatoradictionary 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
299a489e8034cf1f4278d70bd041a5b84cbcffc5077f8ced13f3672b094bf913
Signing certificate
fb293c5e26b3606774793818f84cfc1d6360b8a369eb5382f2bbca28290fcd35
Permissions Required
What each permission lets Sumatora do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
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.
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