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Paper Digest vs Paperguide: catalog facts
Paper Digest	Paperguide
Freemium Can be tried without signing in; full pricing is not described in the research.	Freemium Free to start, with paid plans and demos for teams.
Web	Web
Literature review, question answering and claim verification in one place Search across papers, patents, grants and people	Cited answers from a large paper index Imports libraries from Zotero and Mendeley
Hosted service only Pricing for full use is not clearly stated	Web only, with no offline use AI answers still need checking against the sources
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Account 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.