Compare software

SciSpaceUndermind
Freemium

Free sign-up, with paid plans for more usage and enterprise options.

 Freemium

Free sign-up, with paid and enterprise plans.

Web Web
  • Search across more than 280 million papers
  • Chat with PDF to explain difficult papers
  • Reads full texts and figures, not only abstracts
  • Follows citation trails to find related papers
  • AI summaries of papers still need checking against the source
  • Full features require a paid plan
  • Hosted service that requires an account
  • Focused on scientific literature rather than general search
Web application Web application
Closed source Closed source
License not stated License not stated
Account needed Account needed
Needs internet Needs internet

Checked September 23, 2026

Checked September 24, 2026

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