Privacy

Effective July 1, 2026 · Atrium Browser is made by Epiphani Studios.

The short version: the app runs entirely on your Mac, and your logins never leave it. The website keeps analytics anonymous and cookie-free, and stores an email address only when you type one in.

The app

• Your logins stay on your Mac. Each account tile keeps its session in its own local container on your device. We have no server that receives your cookies, passwords, page contents, or browsing history.
• No account with us is required. The app works without sign-up.
• Diagnostics are opt-in. If you choose to send a diagnostic report, it contains the app version, macOS version, and recent app log lines; it is used only to fix your issue.
• The built-in MCP server listens on your Mac only (a loopback address). It is how an AI assistant you run on the same machine can drive your tiles. Nothing is exposed to the network or to us.

This website

• No advertising trackers and no third-party analytics. We count page events (page views, clicks on the download button, demo interactions) first-party, anonymously, and without cookies. We keep no record of who you are, your IP address, or a device fingerprint.
• Email, only if you give it. If you enter your email (for the setup guide or product updates), we store that address and the date. We use it to send what you asked for, and every email includes an unsubscribe link. We never sell or share it.
• Local preferences. Your light/dark theme choice is kept in your own browser's local storage and never sent anywhere.

Payments

Purchases are processed by our payment provider; we receive your email and receipt details to deliver your license, and we never see your card number.

Questions or removal

Email hello@atriumbrowser.com to ask anything or to have your email address deleted. We answer quickly.