Importance-based inbox categorization
Quartz assigns incoming messages to importance-based categories so important mail stays visible and lower-priority items collapse out of the way.
Quartz
Quartz is a Mac email app that uses local AI to sort messages by importance and draft replies in your writing style. Public beta with Gmail support.
Overview
Quartz is an AI-native email app for Mac that focuses on sorting incoming mail by importance and helping you draft replies in your own voice. It is currently in public beta and is positioned around reducing inbox noise while keeping important messages easy to act on.
The product runs its sorting and drafting model locally on your Mac, and the site says your mail is never uploaded to Quartz servers. Quartz also says it learns your writing style over time, so drafts can reflect your phrasing, cadence, and warmth instead of sounding generic.
Features
Learns from your priorities
The app learns from your behavior over time, using your choices to refine how it classifies future messages.
Style-matched drafting
Quartz generates reply drafts from a few bullet points and adapts to your writing style, relationship to the sender, and thread context.
On-device processing
The model for sorting and drafting runs locally on your Mac, so mail is processed on the device rather than uploaded to Quartz servers.
Device-held encryption
Mail is encrypted on your device with keys you hold, and the site says Quartz never uploads your mail to its servers.
Mac beta with Gmail connection
Quartz is in public beta for Mac users and the site invites users to connect Gmail to get started.
Use cases
Inbox triage
Use Quartz when you want incoming mail sorted so urgent items stay visible and routine messages do not dominate the inbox.
Reply drafting
Use it when you have a reply in mind but want Quartz to turn a few bullet points into a draft that sounds closer to how you write.
Privacy-conscious email workflows
Use it if you want email processing to stay on your Mac instead of being uploaded to a remote service.
Adaptive prioritization
Use it when you want the app to learn which messages matter more to you over time, rather than relying on a fixed priority rule set.
Pros and Cons
Pros
- Auto-categorizes email by importance so higher-priority messages stay visible.
- Drafts responses in a style that is meant to match your own writing.
- Runs classification and drafting locally on the device, with no mail uploaded to Quartz servers.
- States that mail is encrypted on your device with keys only you hold.
- Public beta users can download the Mac app and connect Gmail from the homepage.
Cons
- The source only confirms Mac support and does not mention Windows, web, or mobile apps.
- The pricing page currently returns 404, so the public pricing structure is not available from the source.
- Team or shared-inbox workflows are not described in the provided material.
FAQ
What do I need to start using Quartz?
Quartz is available as a Mac app and is currently in public beta. The site says you can download it for Mac and connect your Gmail account.
Does Quartz process email on-device?
Quartz says classification and drafting run locally on your Mac, and it is limited to Apple Silicon for on-device AI processing.
What does Quartz do for email?
The homepage describes Quartz as an AI-native email product that auto-categorizes messages by importance and drafts replies in your style.
Is Quartz free or paid?
The homepage says Quartz is free for beta users. A pricing page exists, but it currently returns a 404, so no public paid plan details were available from the source.
Is Quartz meant for individual or team use?
The site does not describe team features or shared inbox workflows in the provided source, so its fit for teams is unclear from the current evidence.
Quick Facts
- Category
- AI-native email
- Platform
- Mac
- Availability
- Public beta
- Mail provider support
- Gmail
- Processing model
- On-device AI
- Pricing page
- Returns 404
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