Cotypist

Cotypist is a privacy-first autocomplete app for Apple Silicon Macs that predicts your next words inline in any text field — Mail, Slack, Notion, Notes, docs, even AI prompts. It runs entirely on your Mac, so your text never leaves your device. Just type normally and press Tab to accept a suggestion; keep typing and it adjusts in real time. The more you write, the better it learns your vocabulary, phrasing, and style. Cotypist is designed for writers who want to type faster without losing their voice — no prompting, no copying and pasting, no chatbot detour. It supports word-by-word and mid-line completions (Plus/Pro), full autocorrect, emoji suggestions, custom writing instructions, and per-app settings. Suggestions adapt as you type, and the app catches typos inline without pop-ups. All processing is on-device, using models like Gemma 4 E2B, Qwen 3, and up to Gemma 4 26B on Pro. The free tier gives 100 completed words per day with a 30-day Pro trial. Paid plans (Plus $6/mo, Pro $9/mo) unlock unlimited completions, more models, and deeper customization. Unlike cloud-based assistants (like ChatGPT or Grammarly), Cotypist augments your own writing — it suggests words you would have written anyway, just faster. It works offline and integrates with every Mac app, making it ideal for email, Slack, documentation, AI prompts, and more.