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Barcode Scanner vs QR Scanner: catalog facts
Barcode Scanner	QR Scanner
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the MIT licence.
Android	macOS, Linux, Android
Reads and generates QR Code, Data Matrix, PDF 417 and Aztec Looks up food, cosmetics, book and music product details	Scans and generates QR codes in one app No ads and no personal data collection
Android only Product lookups depend on online databases	Small project with limited development activity Only covers QR codes
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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