Compare software

GrammarlyPerfectIt
Freemium

Free to sign up, with paid plans for more features.

 Paid

Paid software with a free trial that needs no credit card details.

Web, Browser extension Windows
  • Grammar, spelling and clarity checks as you type
  • One-click paragraph rewrites and tone suggestions
  • Checks consistency across the whole document, not just sentence by sentence
  • Finds missing acronym definitions and capitalization inconsistencies
  • Requires an account
  • Text is processed on Grammarly's servers
  • Depends on Microsoft Word
  • Paid after the trial period
Hosted service, Browser extension Downloadable app
Closed source Closed source
License not stated License not stated
Account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

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