01
Room to read
A calm inbox, generous reading space, and considered typography bring the conversation into focus. Familiar Mac interactions help the app feel at home from the first click.
A NEW CHAPTER IN CORRESPONDENCE
A clearer path
through your mail.
Susa is a thoughtful email client being built for the Mac. A calmer inbox, useful AI, and privacy at the foundation—so you can give your attention to what matters.
In development for Mac
What we're building
Less friction between a message and what comes next.
02
Intelligence, close to home
We're designing on-device AI to help summarize conversations, find answers in your mail, and shape a reply. Useful assistance should begin with your context and respect your privacy.
03
You make the final call
Susa's AI will suggest, explain, and point back to the messages behind an answer. You'll review the words, choose the next step, and decide what gets sent.
04
One continuous flow
Reading, replying, searching, and returning to a conversation should feel connected. Susa brings those everyday moments together in a quieter workspace.
Privacy at the foundation
Intelligence belongs close to your words.
Your correspondence holds plans, questions, relationships, and ideas still taking shape. We're designing Susa so useful AI can work on your Mac, with your context, while keeping you in control.
Our privacy principlesOn-device by design
Your provider stays yours
You decide what gets sent
Email will still travel through your chosen email provider. Our goal is to keep AI processing on your Mac, rather than send your inbox to an AI service.
WHY SUSA
A new road for a new age.
Named for the ancient Persian city on the Royal Road, Susa carries an enduring ambition forward: help correspondence move with speed and purpose. Today, that means thoughtful AI with privacy at its foundation.
Read our storyQuestions