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Your mail, made to measure.

A calm, very fast email client. Every account in one inbox, search that answers before you finish typing, and your mail never leaves your Mac.

Download for MacApple siliconWindows & Linux · Join the waitlist

Free · No account needed · macOS on Apple silicon

Terno’s unified inbox: conversations from four accounts in one list, a conversation open beside itTerno’s unified inbox: conversations from four accounts in one list, a conversation open beside it
  • Instantsearch across every account
  • 0Terno servers between you and your mail
  • 18color themes, in three designs

Features

Every account. One inbox.

Gmail, iCloud, Outlook and any other email account side by side, in one list. Each row says which account it came to, so you never answer from the wrong one.

  • Gmail, iCloud, Fastmail, your own domain
  • Unlimited accounts
  • Categories that span them all
Terno’s unified inbox: conversations from four accounts in one list, a conversation open beside itTerno’s unified inbox: conversations from four accounts in one list, a conversation open beside it

No account. No cloud. Just your Mac.

Terno talks to your mail servers and nothing else. There is no Terno account to create and no server in between: your mail, contacts and search index live on your Mac.

  • Private from the very first launch
  • Pictures from the web load only when you ask
  • No tracking of any kind

Found before you finish typing.

Search runs on your Mac over every message, in every account, including the archive. Results arrive instantly.

  • Every folder, every account
  • Search by person, subject or attachment
  • Works offline
Search results for “hopper ride”: more than 100 results, instantlySearch results for “hopper ride”: more than 100 results, instantly

File one. Clear them all.

Drag a newsletter to a category or archive a promotion, and Terno offers to do the same with everything like it, and with what arrives next. One key, and that sender stays out of your inbox until you go looking.

  • Everything from this sender, domain or list
  • A filter for the future in the same step
  • One undo for all of it
After filing a newsletter in Reading, Terno offers to file all 87 more from it, and its future mailAfter filing a newsletter in Reading, Terno offers to file all 87 more from it, and its future mail

⌘K does everything.

Every action, folder, setting and snippet is a few letters away. It learns what you use most and puts it first.

The command palette open, with archive commands matching what was typedThe command palette open, with archive commands matching what was typed

Write it once.

Save the replies you send every week. Press ⌘; in any draft, type a few letters, and the snippet drops in with the recipient’s name already filled.

The snippets list open over a reply, each with a previewThe snippets list open over a reply, each with a preview

The code, one click away.

When a sign-in code arrives, it shows on the message itself. Click to copy, paste, done. No opening, no hunting for six digits.

A verification code shown on its message in the list, with a copy buttonA verification code shown on its message in the list, with a copy button

Instant search.

Search answers the moment you type, even with decades’ worth of email. Everything else is just as quick: every action happens the instant you press the key, and the server catches up in the background.

  • Opens in under a second
  • Light on memory and battery
  • Quiet when you’re not using it

Don’t take our word for it.

Every line of Terno is public. Read exactly how your mail is stored, what goes over the network and what never does. And three years after each release, that version becomes fully open source.

Read the source on GitHub

Three designs. Eighteen palettes.

Pick a design for the shape of the app (warm Lumen, editorial Atelier or Apple-Mail-like macOS) and any color theme on top, from Solarized to Dracula. Or bring your own.

  • Light and dark in every one
  • All checked for contrast
  • Motion you can turn down or off
Terno’s unified inbox: conversations from four accounts in one list, a conversation open beside itTerno’s unified inbox: conversations from four accounts in one list, a conversation open beside it
Terno in the macOS design, compact and Apple-Mail-likeTerno in the macOS design, compact and Apple-Mail-like
Terno in the Atelier design, with serif titles on paperTerno in the Atelier design, with serif titles on paper
Terno with the Apple color theme in light mode and Dracula in dark modeTerno with the Apple color theme in light mode and Dracula in dark mode
Terno with its own color theme in light mode and Nord in dark modeTerno with its own color theme in light mode and Nord in dark mode
Terno with the Gruvbox color themeTerno with the Gruvbox color theme
Terno with Solarized in light mode and Tokyo Night in dark modeTerno with Solarized in light mode and Tokyo Night in dark mode
Terno with the Catppuccin color theme, Latte in light mode and Mocha in dark modeTerno with the Catppuccin color theme, Latte in light mode and Mocha in dark mode

Your inbox at the speed of your hands.

Move, archive, file, reply and undo without touching the mouse. Press ? any time to see every shortcut.

Next, previous
JK
Archive
E
File in a category
L
Reply
R
Search
/
Command palette
⌘K
Undo
Z
Every shortcut
?

Take back your inbox.

Free to download. No account, no sign-up, nothing to configure but your mail.

Download for MacApple silicon

Windows and Linux are coming.

Leave your email and we’ll write once, when Terno is ready for your computer. Nothing else.

We keep your email and platform only to tell you about the release, then delete them.