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Grammarly vs Trinka: catalog facts
Grammarly	Trinka
Freemium Free to sign up, with paid plans for more features.	Freemium Free to start, with paid plans including a Confidential Data Plan.
Web, Browser extension	Web
Grammar, spelling and clarity checks as you type One-click paragraph rewrites and tone suggestions	Tuned for academic and technical writing Includes plagiarism, AI detection and citation tools
Requires an account Text is processed on Grammarly's servers	Less suited to casual or marketing writing Strongest privacy guarantees are on a paid plan
Hosted service, Browser extension	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.