Compare software

LightkeyHyperWrite
Freemium

Pricing details are not given in the research; check the website for current editions.

 Freemium

Free to start, with paid plans for more use.

Windows Web, Browser extension
  • Inline word and phrase prediction in any Windows desktop application
  • Combines text prediction with spelling correction
  • Autocomplete suggestions inside Gmail and other sites
  • Research with citations from scholarly sources
  • Windows only
  • Little public detail on how predictions are produced
  • Extension is Chrome only
  • Text is processed by a cloud service
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 Needs internet

Checked October 1, 2026

Checked September 23, 2026

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