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FairScan vs OSS Document Scanner: catalog facts
FairScan	OSS Document Scanner
Free Free and open source under the GPL-3.0, with no ads or paid upgrade.	Free Free and open source under the MIT license.
Android	Android
Automatic detection, crop and enhancement OCR for searchable PDFs	Scans documents using a phone camera Includes OCR and image processing components
Android only Deliberately simple, with few advanced editing options	Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

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