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GrammarFix: AI Proofreader

GrammarFix: AI Proofreader for Mac

Fix grammar in any Mac app with one shortcut. Private by default with Apple's on-device AI.

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What GrammarFix: AI Proofreader says it does

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Menu bar Mac app that fixes grammar, spelling and punctuation of selected text in place via the macOS Services menu. On Macs with Apple Intelligence it uses on-device Foundation Models so text never leaves the Mac. Optionally the user adds their own OpenRouter, Anthropic or OpenAI key. No account, no analytics, no tracking in the app. US$1.99 one-time. macOS 13+. Not available in the EU or mainland China.

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