Compare software

OpenReadR Discovery
Freemium

Free tier available, with a paid Pro plan.

 Freemium

Free to use, with paid plans listed on its pricing page.

Web Android, iOS, Web, Browser extension
  • Search across more than 300 million papers
  • Compare several papers to spot agreements and contradictions
  • Personalized feed of new research papers
  • Chat PDF and AI answers with references
  • Web only, no desktop app
  • Advanced features sit behind the Pro plan
  • Some features require a paid plan
  • Closed source hosted service
Web application Downloadable app, Web application, Browser extension
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 26, 2026

Checked October 1, 2026

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