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Trinka vs Grammarly: catalog facts
Trinka	Grammarly
Freemium Free to start, with paid plans including a Confidential Data Plan.	Freemium Free to sign up, with paid plans for more features.
Web	Web, Browser extension
Tuned for academic and technical writing Includes plagiarism, AI detection and citation tools	Grammar, spelling and clarity checks as you type One-click paragraph rewrites and tone suggestions
Less suited to casual or marketing writing Strongest privacy guarantees are on a paid plan	Requires an account Text is processed on Grammarly's servers
Web application	Hosted service, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 23, 2026

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