Overview
Quartz is an AI-native email client for Mac users who want their inbox to prioritize important messages without sending email content to external AI providers. The official site says Quartz works with Gmail, runs on Apple Silicon, and is free for beta users.
Quartz ranks messages by importance, collapses lower-priority mail into categories such as FYI, Icebox, and Noise, and drafts replies in the user's voice from a few bullet points. The site emphasizes local AI processing, end-to-end encryption, and CASA Tier 2 certification.
Quartz fits ToolWorthy's AI email generator and AI productivity categories because it combines inbox triage, private local AI, and reply drafting in a focused desktop workflow.
Key Features
Importance-based inbox - Quartz categorizes messages by importance so high-priority email gets more space while less important mail collapses out of the way.
AI reply drafting - Users can provide bullet points and have Quartz draft replies in their tone, cadence, and relationship context.
On-device AI - The site says classification and drafting run locally on Mac, with Apple Silicon required.
Gmail support - Quartz currently targets Gmail workflows rather than every email provider.
Privacy-first design - The official site says email stays private, is never shared with AI providers, and is encrypted on the user's device.
CASA Tier 2 certification - Quartz states it is certified under Google's Cloud Application Security Assessment.
How to Get Started
Download Quartz for Mac from the official site and connect a Gmail account. Because Quartz is designed around local AI, you need an Apple Silicon Mac.
The best first workflow is triage. Let Quartz categorize messages, correct importance decisions, and then test reply drafting on lower-risk emails before relying on it for sensitive customer, investor, or legal communication.
Users should also review Gmail access permissions and security requirements before connecting work inboxes.
Pricing & Plans
Quartz is currently free for beta users. The official site says "Download the app and connect your Gmail - Quartz is free for beta users." Structured metadata also lists an offer price of $0.
No paid production pricing was listed on the public site at review time.
Best For
- Founders, operators, and executives who need better inbox triage
- Gmail users who want an AI email assistant without cloud LLM processing
- Teams comparing AI writing assistants for email replies
- Privacy-sensitive users on Apple Silicon Macs
- Users who want a focused email client rather than a browser extension
FAQ
What does Quartz do?
Quartz is an AI-native Mac email client that ranks important Gmail messages, collapses noise, and drafts replies in the user's writing style.
Is Quartz free?
Yes. The official site says Quartz is free for beta users.
Does Quartz use cloud AI providers?
The official site says AI processing runs locally on the user's device and email is not shared with AI providers.
What devices does Quartz support?
Quartz is a Mac app and the site says Apple Silicon is required for on-device AI.
