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Viz vs Bob: catalog facts
Viz	Bob
Free Free to download; the developer accepts GitHub Sponsors donations.	Freemium Distributed through the Mac App Store; check the store for current pricing.
macOS	macOS
Extracts text from both images and videos Reads QR codes and barcodes	Translates selected text, screenshots and typed input Over 30 translation services, usable side by side
macOS only Little documentation on the product page	macOS only Documentation and site are mainly in Chinese
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it 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.