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Refine vs Writing Tools: catalog facts
Refine	Writing Tools
Free Free to download and use without an account.	Free Free and open source; cloud model providers may charge separately.
macOS	Windows, macOS, Linux
Grammar checking runs locally and works offline Every fix explains the rule behind it	Works on selected text in any application Supports local LLMs as well as cloud APIs
macOS only, requires macOS 14 or later Local model quality depends on the Mac it runs on	Needs an API key or a local model set up Output quality depends on the chosen model
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 26, 2026

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