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Highlights vs Flexcil: catalog facts
Highlights	Flexcil
Freemium Free to use, with advanced features in a Pro subscription that has a free trial.	Freemium Free to download, with free use available to schools on application.
macOS, iOS	Android, iOS, Web
Exports annotations to Markdown and popular notes apps DOI lookup and citation metadata for papers	PDF reading and note taking side by side Gesture-based annotation suited to a stylus
Apple platforms only Advanced features require a subscription	Designed mainly for tablets Homepage gives no details on paid features
Downloadable app	Downloadable app, Web application
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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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