Offline decoder for Czech SPAYD payment QR codes.
About this app
Native Android app that decodes Czech SPAYD (Short Payment Descriptor) payment QR codes. Works fully offline; no data leaves the device.
Features:
* Scan QR codes with the camera * Share images or text into the app via the system Share Sheet (gallery, screenshots, browser) * Pick an image from storage * Open spayd: URIs * Parser derives the Czech account number from the IBAN * One-tap copy for every field * Material 3 with dynamic colors (Android 12+) and dark mode
Built on CameraX and zxing-cpp for QR decoding — no proprietary Google dependencies.
Licensed under MIT, by Jan Čejka.
What's New in v1.1.2
Imported from the F-Droid repository index.
- * Made ABI splits configurable so the F-Droid build can produce a single
- universal APK
- * No user-facing changes
Version history
May 27, 2026 · 8.1 MB · Android API 24–35 · code 6
Imported from the F-Droid repository index.
- * Made ABI splits configurable so the F-Droid build can produce a single
- universal APK
- * No user-facing changes
SHA-256 66d2a92f5690eea317b93ec12a5068fe95000a6c11587644b7466b1ae4ed1bc8
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 cz.jancejka.spayddecoder 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 SPAYD Decoder, 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 SPAYD Decoder, and a listing is removed when the evidence for it stops holding up.
Get SPAYD Decoder
Every source we list for cz.jancejka.spayddecoder 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
66d2a92f5690eea317b93ec12a5068fe95000a6c11587644b7466b1ae4ed1bc8
Signing certificate
b215b228f40c60e92d291cf09288d22dbd2d008f59693e4f0aa1c6ed05d22b64
Permissions Required
What each permission lets SPAYD Decoder 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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