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OpenReadalphaXiv
Freemium

Free tier available, with a paid Pro plan.

 Free

The homepage lists no prices; signing up adds following and discussion.

Web Web, Browser extension
  • Search across more than 300 million papers
  • Compare several papers to spot agreements and contradictions
  • Trending papers with summaries and discussion
  • Follow specific authors and organizations
  • Web only, no desktop app
  • Advanced features sit behind the Pro plan
  • Focused on arXiv papers
  • Discussion features require an account
Web application 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 Needs internet

Checked September 26, 2026

Checked October 1, 2026

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