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Genius Scan vs Open Note Scanner: catalog facts
Genius Scan	Open Note Scanner
Freemium A free version is available. Genius Scan+ and the Ultra plan are paid.	Free The open-source application is available without a license fee.
Android, iOS	Android
Reliable automatic edge detection and perspective correction Scanning and OCR happen on the device rather than in a cloud service	Fully open source with no account or cloud component Automatic edge detection and perspective correction
OCR, smart document names and cloud export need the paid tier Mobile only	Rougher than commercial scanner apps Development is intermittent
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.