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Petal vs ChatPDF: catalog facts
Petal	ChatPDF
Freemium Free to start, with paid options for more use.	Freemium Free to use, with a paid Plus upgrade.
Web	Web
Answers cite the source documents Document storage with automatic metadata extraction	Answers cite the passages they come from Folders for chatting across several files
Documents are stored in Petal's cloud Requires an account	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
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 23, 2026

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