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BookendsPaperpile
Paid

Commercial software sold through the developer's site.

 Paid

Paid subscription with a 30-day free trial.

macOS, iOS Android, iOS, Web, Browser extension
  • Imports from many academic databases
  • Citation tools for Word, Mellel and Nisus Writer Pro
  • Built-in PDF viewer with annotation tools
  • Citation plugins for Google Docs and Word
  • Mac and iOS only
  • Paid, unlike Zotero
  • Requires a Google account
  • Sign-up only on Chrome for now, Safari and Firefox in beta
Downloadable app Downloadable app, Web application, Browser extension
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

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