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Grammarly vs Outwrite: catalog facts
Grammarly	Outwrite
Freemium Free to sign up, with paid plans for more features.	Freemium Free grammar checking, with style features in a premium plan and a Teams plan.
Web, Browser extension	Web, Browser extension
Grammar, spelling and clarity checks as you type One-click paragraph rewrites and tone suggestions	Works in Google Docs, Gmail, Word and Outlook Paraphrasing and passive voice fixes
Requires an account Text is processed on Grammarly's servers	Style suggestions require the premium plan Supports only English, French and Spanish
Hosted service, Browser extension	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
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.