Private offline Japanese keyboard with user dictionary and snippets
About this app
Sumire is a Japanese keyboard for people who want local-first input and predictable behavior. Typing, conversion, personalization, and learning data stay on the device.
The Lite F-Droid build focuses on the core keyboard experience: - kana and romaji input with Japanese candidate conversion - user dictionary and reusable text snippets - clipboard-based helpers and customizable keyboard layouts - emoji and symbol keyboards
This flavor excludes the optional Zenz and Gemma model features so it can be distributed on F-Droid with the free-software components needed for everyday typing.
The app does not request Internet access. Voice input uses the microphone permission only when you choose to use speech recognition provided by your device.
Licensed under MIT, by Kazuma Naka.
What's New in v1.7.97-lite-fdroid
Imported from the F-Droid repository index.
Version history
Jul 16, 2026 · 35.1 MB · Android API 24–36 · code 790
Imported from the F-Droid repository index.
SHA-256 8a9fb8db5f44a4a1644ad342c6f32492cfbec50a794e4d46009f472f8ffd0648
Jul 14, 2026 · 35.1 MB · Android API 24–36 · code 789
Imported from the F-Droid repository index.
SHA-256 b6a7851f122601f030e516e15626341e9b9cda81ac3e829827055bc41f5d4cce
Jul 10, 2026 · 35.1 MB · Android API 24–36 · code 786
Imported from the F-Droid repository index.
SHA-256 29bc6c4c214d043b736d70ea06f28b1aaa0f2132de7c0fc64b078dff43a90a10
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- 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 com.kazumaproject.markdownhelperkeyboard.lite.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, 1.7.96-lite-fdroid is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Sumire Japanese Keyboard Lite F-Droid 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 Sumire Japanese Keyboard Lite F-Droid, and a listing is removed when the evidence for it stops holding up.
Get Sumire Japanese Keyboard Lite F-Droid
Every source we list for com.kazumaproject.markdownhelperkeyboard.lite.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
8a9fb8db5f44a4a1644ad342c6f32492cfbec50a794e4d46009f472f8ffd0648
Signing certificate
ec676c30f05f3947a1aec86d02ecead150f772790b35fcaf8af484c1dd5eb4c0
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.