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ReadCube PapersPaperpile
Paid

Paid product with a free trial.

 Paid

Paid subscription with a 30-day free trial.

Web, Browser extension Android, iOS, Web, Browser extension
  • PDF annotation combined with reference management
  • Imports papers with full metadata and citations
  • Built-in PDF viewer with annotation tools
  • Citation plugins for Google Docs and Word
  • Paid after the trial
  • Much of the product is aimed at companies and research teams
  • Requires a Google account
  • Sign-up only on Chrome for now, Safari and Firefox in beta
Downloadable app, Web application, Browser extension Downloadable app, Web application, Browser extension
Closed source Closed source
License not stated License not stated
Account needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 1, 2026

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