GrammarKey is an AI-powered iOS keyboard that fixes your grammar in real-time — right where you type. No copy-pasting to Grammarly. No app switching. Just tap Fix and you're done. Works in iMessage, WhatsApp, Gmail, Slack, LinkedIn — anywhere with a text field. • Fix Grammar — corrects tenses, articles, prepositions • Rewrite — makes text sound natural and professional • Privacy-first: your text is never stored Built for non-native English speakers. $2.99/month · 7-day free trial