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Grammarly vs Writefull: catalog facts
Grammarly	Writefull
Freemium Free to sign up, with paid plans for more features.	Freemium Pricing details are not given on the homepage.
Web, Browser extension	Windows, macOS, Web
Grammar, spelling and clarity checks as you type One-click paragraph rewrites and tone suggestions	Feedback tailored to academic writing Works in Word and in Overleaf LaTeX
Requires an account Text is processed on Grammarly's servers	Focused on academic English Requires an internet connection
Hosted service, Browser extension	Downloadable app, Web application
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	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

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