Free and open-source amateur radio logbook with ADIF support and QSO signing
About this app
TaffyQSL is a free and open-source amateur radio logbook for Android, inspired by TrustedQSL.
It allows radio operators to manage contacts using the ADIF format and sign QSOs in workflows compatible with Logbook of the World (LoTW). Certificates and private keys are stored locally and protected using the Android Keystore, with encrypted backups on the device.
TaffyQSL focuses on local-first operation and privacy. All log data and certificates remain on the user's device. The application contains no telemetry or tracking.
Features:
* Creation, editing, and export of ADIF logbooks * QSO signing compatible with LoTW workflows * Direct upload to LoTW and query of confirmed QSLs * Natural-language QSO parser for faster logging * Satellite and DXCC entity support * Hardware-backed key protection when supported by the device * Customizable date and time display formats * Available in English, Chinese (Simplified), and Japanese
Licensed under GPL-3.0-or-later, by Sophiel Zhou.
What's New in v2026-SpringBlossom-b
Imported from the F-Droid repository index.
- Initial release.
Version history
May 14, 2026 · 45.8 MB · Android API 30–36 · code 20260302
Imported from the F-Droid repository index.
- Initial release.
SHA-256 3f3dfe5a77790861bd677afd6136dc0ef643dd7fdcd0f09584623bd24fa2716c
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 moe.zzy040330.taffyqsl 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
No earlier build is on record for TaffyQSL, so there is nothing to roll back to yet. When a second version is published, this section will explain how to move between them safely.
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 TaffyQSL, and a listing is removed when the evidence for it stops holding up.
Get TaffyQSL
Every source we list for moe.zzy040330.taffyqsl 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
3f3dfe5a77790861bd677afd6136dc0ef643dd7fdcd0f09584623bd24fa2716c
Signing certificate
ce60fd69ed5d148dbc85af164804f7c4c083460d9b8d2ccaef146056a58d4333
Permissions Required
What each permission lets TaffyQSL do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
No earlier build is on record — this is the first release we have listed.
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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