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NAPS2 vs Genius Scan: catalog facts
NAPS2	Genius Scan
Free The open-source application is available without a license fee.	Freemium A free version is available. Genius Scan+ and the Ultra plan are paid.
Windows, macOS, Linux	Android, iOS
Works with nearly any scanner protocol on Windows, macOS and Linux Built-in OCR produces searchable PDFs with no extra step	Reliable automatic edge detection and perspective correction Scanning and OCR happen on the device rather than in a cloud service
Deliberately simple; it is not a document management system OCR language packs must be downloaded separately	OCR, smart document names and cloud export need the paid tier Mobile only
Downloadable app	Downloadable app
Open 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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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