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Open Note Scanner vs Scanner Pro: catalog facts
Open Note Scanner	Scanner Pro
Free The open-source application is available without a license fee.	Freemium A limited free tier is available. Full features require a paid subscription.
Android	iOS
Fully open source with no account or cloud component Automatic edge detection and perspective correction	Workflows automate naming and delivery after each scan Strong automatic correction and OCR quality
Rougher than commercial scanner apps Development is intermittent	iOS only Requires a subscription for OCR and workflows
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.