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CoBang vs Qrca: catalog facts
CoBang	Qrca
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0+.
Linux	Linux, Android
Reads both QR codes and barcodes Native Linux desktop app	Both scans and generates QR codes Runs on Linux desktops and Android
Linux only No dedicated homepage beyond the GitHub repository	Scanning needs a camera Narrow single-purpose tool
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.