Paperpal
8.7#8 in ai writing toolsFrom $139 a yearFree planWebExtensionmacOSWindows
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| Fact | Paperpal | SciSpace |
|---|---|---|
| Browser extension | Yes | The Chrome extension summarizes highlighted PDF text, chats with PDFs, saves papers to the library and generates citations. |
| Headquarters | Singapore | Milpitas, California, USA |
| Integrations | Official pages list a web app, Microsoft Word add-in, Google Docs support, Chrome extension and Overleaf support. | SciSpace says users can import references from Zotero or EndNote; its Zotero guide notes papers without a DOI will not be imported. |
| Privacy | Paperpal says it never uses user documents, uploads, or personal information to train its AI models and allows users to delete documents. | SciSpace says uploaded PDFs are private, accessible only to the user, and are not used to train its AI models. |
| Rating on Chrome Web Store | 4.2 out of 5 from 28 ratings | 4.4 out of 5 from 144 ratings. |
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.
SciSpace suits students, researchers, and writers who need tools for finding papers, reviewing PDFs, or drafting scientific writing. Its browser extension and iOS app offer additional ways to work with literature.