Get your inboxes in order.
Download Smails, add your accounts, and never lose an inbox tab again.
↓ Download for macOSEvery Google and Outlook account, one click apart, in one fast window. No browser tabs to lose. Just your inboxes.
Loved by switchers
“I've closed my 4 Chrome tabs and have never looked back. It also converts my markdown tables to HTML!”
Why Smails
The real Google and Outlook you already know, in a light, fast app.
Each account stays signed in on its own. They never tangle or log each other out.
Every inbox stays warm in the background. Flip between accounts with a click or a number key, no reloads.
No bloated browser packed inside, so it opens fast and stays out of your way.
Click a link in an email and it opens where it should, in your real default browser, not trapped in the app.
Set it as your default mail app. Click any email link and Smails opens a ready-to-write message.
Real profile photos, unread badges, the Google and Outlook interfaces you know. Nothing to relearn, nothing to sync.
Pricing
Try it free with one account. Pay once to add as many as you like. No subscription.
One payment, about what a fancy coffee costs. No subscription, yours for good.
How it compares
The pay-once way to run all your Google and Outlook accounts in one window.
| Smails | Shift | Mimestream | |
|---|---|---|---|
| Multiple Google & Outlook accounts in one window | ✓ | ✓ | ✓ |
| Light and fast (no bundled browser) | ✓ | ✗ | ✓ |
| The real webmail interface you know | ✓ | ✓ | ✗ |
| One-time price, no subscription | ✓ $9.99 | ✗ | ✗ |
Good to know
No. You sign in to Google directly, just like in a browser. Smails never sees your password, and your sign-in stays on your computer.
No. Smails is an independent app that loads Gmail's and Outlook's own web interfaces. It isn't affiliated with, or endorsed by, Google or Microsoft. "Gmail" is a trademark of Google LLC; "Outlook" is a trademark of Microsoft Corporation.
A Mac on macOS 15 (Sequoia) or later, or a PC on Windows 10 or 11. That's it.
A Pro license is a one-time purchase that activates on up to 2 devices. It works offline; it just checks in occasionally to stay valid. Lost your key? You can recover it any time from your purchase email.
No, Google doesn't make a native Gmail app for macOS. Most people end up with browser tabs, a heavy app that bundles its own browser, or a full email client. Smails is the lightweight native app that just runs Gmail itself, with every account in one window.
No. Smails is a one-time purchase of $9.99, with free updates. Free with one account, pay once to add as many accounts as you like. No monthly fee, ever.
Yes. If you loved Mailplane for keeping all your Gmail accounts in one native window, Smails is the closest successor: native, one-time price, multi-account. Mailplane shut down because Google blocked old embedded-browser sign-in; Smails uses Google's normal, current sign-in, so it doesn't hit that wall.
Almost always. You sign in with Google's normal web flow, so personal Gmail and most Google Workspace accounts work fine. The one exception: a Workspace account whose organisation enforces passkey or security-key-only sign-in can't sign in to any embedded app — that's a Google restriction, not specific to Smails. If that's one of your accounts, keep it in your browser and use Smails for the rest.
Try it free with one account first — no card needed. If you buy a license and it doesn't work out, just email hello@matta.io and we'll refund you, no fuss.
What's new
Smails ships improvements regularly, and updates install themselves.
Smails is shaped by the people who use it. Got an idea, a wish, or a missing feature? Tell us.
Share an idea
Download Smails, add your accounts, and never lose an inbox tab again.
↓ Download for macOS