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vFlat Scan vs NAPS2: catalog facts
vFlat Scan	NAPS2
Freemium A limited free tier is available. Full use requires a paid subscription.	Free The open-source application is available without a license fee.
Android, iOS	Windows, macOS, Linux
Curved-page flattening that ordinary scanner apps cannot do Removes fingers and shadows from the edges of captured pages	Works with nearly any scanner protocol on Windows, macOS and Linux Built-in OCR produces searchable PDFs with no extra step
Free use is limited and the full feature set is a subscription Mobile only	Deliberately simple; it is not a document management system OCR language packs must be downloaded separately
Downloadable app	Downloadable app
Closed source	Open 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.