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ChatDOC vs ChatPDF: catalog facts
ChatDOC	ChatPDF
Freemium Pricing details were not in the research; check the site for current plans.	Freemium Free to use, with a paid Plus upgrade.
Web	Web
Summarizes long PDFs quickly Explains complex passages in plain language	Answers cite the passages they come from Folders for chatting across several files
Documents are uploaded to a hosted service AI answers need checking against the document	Documents are processed on a remote service Chat history is only saved after signing up
Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is 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 23, 2026

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