Quartz
MAC · iOS · GMAIL — PRIVATE BETA

Email,
that knows what deserves
your attention.

Important messages get the room they need. AI drafts sound like you. Your emails stay private, never shared with AI providers.

Runs on your device Learns your style Hides the noise
Focus

Importance shapes what you see.

Quartz auto-categorizes every message by importance — defined by you, learned over time. Critical mail gets the room it deserves. Routine items stay scannable. Noise collapses out of the way.

Maggie Donovan <maggie@axiom.vc>
Today, 9:42 AM
Term sheet — needs your signature today
Maggie needs your countersignature on the final redline today to close Friday.
Marcus ReyesCoffee next week?
Today, 11:17 AM
Marcus is inviting you for coffee next week to revisit the offsite plan and share his shortlist of three venues.
FYI(8)Product Hunt, Stripe weekly, GitHub digest…Icebox(9)Bank statement, AWS receipt, Notion update…Noise(18)Cold outreach, phishing attempts, promos…
Privacy

Processed on this device. Nothing is uploaded.

The model that sorts your inbox and drafts your replies runs locally — on your Mac, iPhone, iPad. We can't read your mail. Neither can our servers, because there are none.

Privacy
On-device AI
Classification and drafting run locally. Apple Silicon only.
End-to-end encrypted
Mail is encrypted on your device with keys only you hold.
Your voice

Replies that sound like you.

Quartz learns the way you write, understands your relationship with the sender, and picks up the context of each email thread. Drafts come back in your cadence, your phrasing, and your level of warmth. Generic LLM tone is left at the door.

Drafted based on provided bullet points
ToMarcus ReyesSubjectRe: Q3 plan — final draft

Hey Marcus,

Read through it last night — overall solid. The framing in section 2 is sharper than before, which I think will actually move the needle in the exec review.

A few small notes inline. Nothing structural, just word-level stuff. Happy to jump on a call tomorrow if that's useful.

— Ada

An inbox worth opening.

Quartz is in private beta on Mac and iPhone. Join the waitlist - we send invitations in small batches.

Join the waitlist - we send invitations in small batches.