nonolingo

nonolingo is a macOS app for people who write English at work as a second language. In any text box (Slack, Gmail, Teams, Telegram, WhatsApp, Notion, a browser field) it shows two lines under your draft: a clean fix that keeps your words, and a native rewrite that sounds like a fluent speaker. Press Tab to accept, Esc to ignore; it never sends for you. You can also type in your own language and get natural English back, select a message to get reply ideas, or translate it with its tone. 7 days free with everything on, no sign-up or card, then free every day. Pro is a one-time pass ($1.99 for 30 days or $19.99 for a year) that never renews. Requires macOS 14+, Apple silicon or Intel.