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HighlightsLiquidText
Freemium

Free to use, with advanced features in a Pro subscription that has a free trial.

 Freemium

Free to install from the app stores; the homepage does not list the prices of paid…

macOS, iOS Windows, macOS, iOS
  • Exports annotations to Markdown and popular notes apps
  • DOI lookup and citation metadata for papers
  • Excerpts and notes can be arranged and linked on a workspace
  • Suited to reviewing long documents
  • Apple platforms only
  • Advanced features require a subscription
  • Pricing is not clearly stated on the homepage
  • Its workflow takes some learning compared with a plain PDF reader
Downloadable app 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

Checked September 24, 2026

Checked September 23, 2026

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