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.

SPAYD dekodér