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Flexcil vs Noteshelf: catalog facts
Flexcil	Noteshelf
Freemium Free to download, with free use available to schools on application.	Freemium Free to download, with paid options and enterprise plans.
Android, iOS, Web	macOS, iOS
PDF reading and note taking side by side Gesture-based annotation suited to a stylus	Realistic pens and many paper templates for handwriting PDF annotation with highlights and sticky notes
Designed mainly for tablets Homepage gives no details on paid features	Limited to Apple devices according to the homepage Best used with a stylus
Downloadable app, Web application	Downloadable app
Closed 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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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