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Paperpal vs PDFpal

Paperpal

8.7#8 in ai writing toolsFrom $139 a year
Free planWebExtensionmacOSWindows
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PDFpal

5.6#26 in ai pdf assistants
WebAPISelf-hosted
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What both publish

FactPaperpalPDFpal
IntegrationsOfficial pages list a web app, Microsoft Word add-in, Google Docs support, Chrome extension and Overleaf support.PDFpal supports the Claude, Codex, and OpenCode agent CLIs and uses OpenAlex and Semantic Scholar for discovery.
ProductPaperpal is an AI research and academic writing workspace with writing, citation, paraphrasing, and integrity-check tools.PDFpal is a local PDF reader with AI chat, notes, highlights, and a scriptable CLI.

Paperpal plans

  • FreeFree
  • Prime$12 a month
  • Prime Monthly$25 a month
  • Paperpal Prime$25 a month
  • Pro$29 a month
  • Prime Quarterly$55, paid once

PDFpal plans

No prices published.

Pick Paperpal if…

Paperpal suits students and researchers who need academic writing, citation, and submission-readiness tools. Its integrations may suit people writing in Word, Google Docs, or Overleaf.

Pick PDFpal if…

You want what its maker publishes above — check its page for the details.

Charts they share