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