Compare software

PetalAvidnote
Freemium

Free to start, with paid options for more use.

 Freemium

Sign-up is free to start, with paid plans listed on its pricing page.

Web Web
  • Answers cite the source documents
  • Document storage with automatic metadata extraction
  • Paper and notes shown side by side
  • Ask questions, summarize and proofread uploaded documents
  • Documents are stored in Petal's cloud
  • Requires an account
  • Web only, with documents uploaded to the service
  • AI-generated text needs careful checking before academic use
Web application Web application
Closed source Closed source
License not stated License not stated
Account needed Account needed
Needs internet Needs internet

Checked September 26, 2026

Checked October 1, 2026

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