Atomic Mail for Mac

A private email app for Mac: a native macOS client that's end-to-end encrypted, free to download and doesn't ask for your phone number.

Download for Mac

Free download

Native macOS app

Also works in your browser

A Mac email app built for privacy

A fast, lightweight email client for Mac, made for long, focused sessions and protected by the same encryption as every Atomic Mail app.

Encryption that starts on your Mac

Emails and attachments you send to other Atomic Mail users are locked with AES-256, RSA-2048 and ECIES before they leave your Mac. Only the recipient can open them.

A mailbox we can't open

Your stored mail is encrypted with keys we never hold, so no one at Atomic Mail can read your inbox.

10 free aliases

Sign up for newsletters, tools and online stores with separate aliases and keep your main address out of their databases.

Protected mail to any provider

Password-protect a message or set it to self-destruct, even when the recipient uses Gmail, Outlook or iCloud.

Privacy Center built in

See your privacy analytics and reach every privacy feature from one place in the sidebar.

Sign up without a phone number

Your account needs no phone number and no backup email, so it isn't linked to your real-world identity.

How to install Atomic Mail on your Mac

The Mac app is ready in a few minutes. There's nothing to configure in Apple Mail, and nobody asks for your phone number.

Download the Mac app

Click Download for Mac on this page to get the installer (a .dmg file) from atomicmail.io. The app is free.

Install and open Atomic Mail

Open the downloaded file, follow the installer's steps, then launch Atomic Mail from your Applications folder.

Create your address or sign in

Create a new account without a phone number, or sign in with the account you already use on iPhone, Android, Windows or the web.

Save your seed phrase

When you create an account, you get a seed phrase. Write it down and store it offline: Atomic Mail doesn't hold your keys, so it's your way back in if you forget your password.

Prefer not to install anything?

Open atomicmail.io in Safari or any other browser and sign in. The web app uses the same account and the same encryption.

Atomic Mail and Apple Mail: what's the difference?

Apple Mail is an email client: an app that shows mail from whichever provider you add to it. Atomic Mail is the email provider itself, with its own Mac app, so it controls how your mail is encrypted and stored.

What that means on your Mac:

Different jobs. Apple Mail displays your mail. Atomic Mail is where your address and mailbox live.

Encrypted end to end. Messages between Atomic Mail users are encrypted before they leave your Mac, not just in transit.

Unreadable to us. The mailbox stored on Atomic Mail's servers is encrypted with keys only you hold.

Not in Apple Mail yet. There's no IMAP access today, so you read Atomic Mail in its own app or your browser. IMAP is on the roadmap.

Use both side by side. Keep Apple Mail for your other accounts and use Atomic Mail for private email.

Atomic Mail vs iCloud Mail on Mac

Many Mac users read iCloud Mail in Apple Mail. Here's how that setup compares with Atomic Mail.

Features

Atomic Mail

iCloud Mail

Encryption options

Aliases

10 free aliases for each email account

3 free aliases for each email account

Data privacy

Advanced

Limited

Spam & phishing protection

Advanced

Moderate

Where your mail is stored

Germany (EU)

Apple data centres

No ads

End-to-end encryption

Zero-access encryption

Anonymous registration

Free unlimited storage

Seed phrase account recovery

Email without phone number

No personal data required

Works in Apple Mail (IMAP)

Not yet (on roadmap)

Compare Atomic Mail and iCloud Mail in detail

For teams

Business email on your Mac

Need a professional address? Atomic Mail Business puts your team on your own domain, like you@yourcompany.com, with end-to-end encryption, shared aliases such as sales@ and admin controls. Everyone uses the same Atomic Mail apps, including on Mac. Plans start at $3 per user per month.

Explore business email

The Mac app at a glance

Price

Free, with an optional Atomic Plus plan.

Download

Installer (.dmg) from atomicmail.io.

Account

Start a new address or log in with your existing account.

Notifications

Native macOS notifications for new mail.

Privacy Center

Privacy analytics and a sidebar shortcut to every privacy feature.

Recovery

A seed phrase you keep offline, not a phone number.

Data location

Encrypted and stored in Germany, in ISO 27001-certified data centres.

Other platforms

Also on iPhone, Android, Windows and the web.

Atomic Mail for Mac: FAQ

Is there an Atomic Mail app for Mac?

Yes. Atomic Mail has a native macOS app you can download for free from atomicmail.io. You can also use Atomic Mail in any Mac browser.

Is the Atomic Mail Mac app free?

Yes. Downloading and using the Mac app costs nothing, and the free plan comes with unlimited storage, 10 aliases and end-to-end encryption. Atomic Plus is optional and adds more aliases, Hide My Email and AI tools.

Can I add Atomic Mail to Apple Mail?

Not at the moment. Without IMAP or SMTP support, Atomic Mail can't be connected to Apple Mail or Outlook for Mac. IMAP is on the roadmap; until then, read your mail in the Atomic Mail app or your browser.

Is Atomic Mail a good Apple Mail alternative?

It can be for your private email. Apple Mail is an app for reading mail from other providers, while Atomic Mail is a provider with its own Mac app. Many people keep Apple Mail for other accounts and use Atomic Mail alongside it.

Is Atomic Mail secure on Mac?

Yes. Email between Atomic Mail users is encrypted end to end on your Mac before it's sent, and your stored mailbox uses zero-access encryption. Data is kept in ISO 27001-certified data centres in Germany.

What's the best email app for Mac if privacy matters?

Choose a provider that encrypts mail end to end and can't read your stored mailbox, not just a client that displays mail kept somewhere else. Atomic Mail's native Mac app does both, and it's free. You can also sign in from Safari or any other browser.

Can I use business email with my own domain on Mac?

Yes, with Atomic Mail Business. Custom-domain plans start at $3 per user per month, and your team uses the same Atomic Mail apps, including on Mac.

Is Atomic Mail in the Mac App Store?

On Macs with Apple silicon (M1 or later) running macOS 13 or later, the Atomic Mail iPhone app is also available through the App Store. For the full desktop experience, download the native Mac app from this page.