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FairScan vs Archiv: catalog facts
FairScan	Archiv
Free Free and open source under the GPL-3.0, with no ads or paid upgrade.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Automatic detection, crop and enhancement OCR for searchable PDFs	ML-powered corner detection when scanning Tagging and fast search across scanned documents
Android only Deliberately simple, with few advanced editing options	Android only Young project with a small community
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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