Grammarly lives in your browser and Google Docs. Most non-native English speakers write from their phone, in apps Grammarly never touches: WhatsApp, Instagram DMs, Slack, iMessage, Gmail. ReplyPixel is a keyboard. Type your draft in your own English, tap fix, and it rewrites it in one of three tones — casual, polite, professional — right where you're typing. No copy-paste into a website, no switching apps, no waiting for a browser tab to load.