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Paper Digest vs OpenRead: catalog facts
Paper Digest	OpenRead
Freemium Can be tried without signing in; full pricing is not described in the research.	Freemium Free tier available, with a paid Pro plan.
Web	Web
Literature review, question answering and claim verification in one place Search across papers, patents, grants and people	Search across more than 300 million papers Compare several papers to spot agreements and contradictions
Hosted service only Pricing for full use is not clearly stated	Web only, no desktop app Advanced features sit behind the Pro plan
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

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