MailTwin
Why MailTwin

Your inbox is a part-time job. Fire it.

Why we built an email twin instead of another inbox.

The average professional spends 2.6 hours every working day in email — over a quarter of the workweek, according to McKinsey. And if you're a lawyer, consultant, accountant, agent, or anyone whose clients live in their inbox, you're fielding 80 to 120 emails a day, most of them waiting on a reply only you can write.

Do the math on your own week: if a considered, professional reply takes eight minutes and you write twenty of them a day, that's your afternoon. Every day. It's the job you never applied for — and it's the part of your work that AI should have fixed years ago.

Now imagine answering most of them with keywords and a click.

Select the email. Type what you want to say, in shorthand:

can't friday, propose tuesday, ask about invoice

MailTwin writes the full, professionally typed reply — ready to send in seconds instead of several minutes. And not in generic AI-speak: in your voice, learned locally from your own sent mail, kept separate for every account so work-you and weekend-you each sound right.

You stay the author.

Every draft waits for your review, and a built-in validator makes sure the AI can never quietly change a number, a date, or a link. You just stop doing the typing.

The rest of the equation: it lives inside Apple Mail (no new inbox to move into), you choose the AI — Claude, ChatGPT, Gemini, or free on-device with Apple Intelligence or Ollama — and your email never touches our servers, because there aren't any.

Stop writing email. Start approving it.

30-day free trial, no card. Then $19.90 — once.

Download for macOS →