Dear inbox,

Clementine. Every Gmail account,
native to your Mac.

Clementine is a native Mac email client for Gmail. Every account together, kept properly Gmail, with calm AI and a CLI your agents can drive.

Free 14-day trial · $49.99, own it forever · macOS 15+

Your inbox in Clementine
Clementine's inbox: sidebar with accounts and labels, the mail list with a morning brief card, and an open conversation The same Clementine inbox in dark mode
Native to Gmail

One place for all
your Google accounts.

Apple Mail can fetch your Gmail, but it flattens it into generic IMAP folders and one grey pile. Clementine talks straight to the Gmail API, so every account keeps its labels, categories, and its own color.

AL
Personal
alex@gmail.com
NW
Work
alex@northwind.co
MS
Studio
hello@maple.studio
In Apple Mail
  • Gmail labels collapse into plain folders
  • Every account piles into one grey inbox
  • IMAP search, no Primary / Social categories
In Clementine
  • Real labels and categories, exactly like Gmail
  • A signature color for every account space
  • Gmail-native search, archive, and shortcuts

Spaces with their own color.

Give each account a signature color and the whole window dresses to match, so you always know which hat you're wearing before you hit send.

  • Unified inbox, or one space per account.
  • Per-profile colors, notifications & Focus filters.
  • Each space keeps its own hours: personal mail can wait until evening.
  • Categories & labels, exactly like Gmail, only faster.

Keep scrolling. The window dresses to the space.

Gmail, all of it

Real Gmail,
kept intact.

Most Mac mail apps flatten Gmail into generic IMAP folders and call it a day. Clementine speaks Gmail natively: categories, labels, filters and snooze work exactly the way Gmail means them, at Mac speed.

  • Inbox Categories

    Primary, Social, Promotions and Updates, sorted by Gmail so your inbox shows only what matters.

  • Gmail Labels

    Full Gmail labels with color-coding and nesting, kept as labels and never flattened into folders.

  • Filters

    Create and manage your server-side Gmail filters without leaving the app.

  • Snooze & Schedule

    Snooze a thread out of the inbox, and schedule a send for when it lands best.

  • Undo Send

    A calm few seconds to catch the typo, the missing attachment, or the wrong Alex.

  • Aliases & Signatures

    Send-as aliases with reply-from rules and a signature per account.

  • One-click Unsubscribe

    Bulk mail carries a real unsubscribe button, right in the reader.

  • Vacation Responder

    Set up and manage your Gmail vacation reply right from your Mac.

Stay on top

Your inbox,
already sorted.

Gmail keeps the mail; Clementine keeps the overview. Views, VIPs, and a morning brief turn the pile into a plan, and none of it acts without you.

Choose your View.

A View is a saved slice of your mail with its own look. Start from the gallery, from News to Receipts to Pull requests, or start blank and shape your own. They live in the sidebar and file themselves.

  • Starter gallery or blank, your call.
  • AI-powered Views ride Auto Labels; the rest work with AI off.

One calm card, every morning.

The morning brief greets the day's first open with what arrived overnight, VIPs first. Read it, dismiss it, and it stays gone until tomorrow. No lists to configure, no digest emails to unsubscribe from later.

  • Once a day, only when there's something worth saying.
  • Built from your inbox on your Mac, no AI required.

The thing you actually have to do.

Stop marking mail unread and hoping you remember. Press T on any email and the action is kept as a real to-do that still knows the conversation it came from. With AI on it writes its own title and pulls out the amounts, dates and attachments you will need; a deadline in the mail is offered as a date you tap to accept, never set behind your back.

  • Grouped by when it is due, and the badge counts only overdue and today.
  • Or connect Todoist or Apple Reminders and every capture lands there instead.

VIP People

Mark the people who matter and they surface first, everywhere.

Auto Labels

Opt-in AI classifiers that file incoming mail, including rules you build yourself.

Waiting On

Asked a question and never got a reply? A quiet nudge after a few days.

Get to Zero

Sweep the backlog in one pass: pick a cutoff, keep starred, undo if you regret it.

One click, from the list

Most emails ask
for one thing.

So Clementine offers it right there on the row, and you never open the message at all. The rest of the row is yours: put the actions you reach for most within a click.

The row already knows what you need.

  • Clementine reads what the email is asking and puts it on the row: track the parcel, open the statement, sign in.
  • If the link leaves the sender's own site, the row says where it goes before you click.
  • Your own verbs sit beside it. Archive, delete, snooze, star, in whichever combination you actually use.
Four email rows in Clementine. Two carry an action the email itself asked for, Track your parcel and Open statement, and every row ends with archive, delete and snooze buttons
Yours, not ours

Shape it around
how you already work.

You delete, someone else archives, and a third person snoozes everything until Monday. None of you should have to learn a stranger's habits to read your own mail, so nearly every part of Clementine can be moved, renamed, quietened or switched off.

The list
Density, preview lines, grouping, and a full-width layout with a reader that slides in.
The row
Which buttons sit on every row, which verbs the swipes run, and what the badges show.
The rail
Spaces per account, which mailboxes appear, saved Views, and what carries a badge.
The interruptions
Notifications per account, VIPs only, quiet hours, and a Focus that holds the inbox still.
The AI
On or off, with your own key. Nothing is sent anywhere until you ask for it.
The keyboard
Every shortcut listed, and the ones you disagree with remapped.
Focus

An inbox that
holds still.

Turn Focus on and the inbox stops moving. Nothing new appears, no badge ticks up, no notification arrives. The mail keeps coming; you just don't have to watch it land.

On a schedule, or right now.

Give your day focus hours and Clementine goes quiet on its own, every day. Need it this minute? Start a 25, 45, or 90 minute session from the sidebar and the inbox holds until the timer runs out.

  • The list freezes. No new rows, no unread counts climbing while you work.
  • Notifications pause. Nothing pings, nothing bounces in the Dock.
  • Mail still syncs underneath, so the moment you're done it's all there.
  • Stepping out takes a deliberate hold, so a reflex click can't break it.
Focus until 15:30
You're focusing
About 25 minutes to go.

New mail is waiting quietly and will be here the moment you're done.

Hold to step out
The sign-in moment

Codes and links,
handled.

Some mail is just a key you need for ten seconds. Clementine spots a one-time code or a sign-in link the moment it lands, and hands it to you where you already are.

The code comes to you.

A verification code lands and the notification itself offers Copy code: one click and it is on your clipboard, the email already marked read. At the inbox, a calm card does the same. No opening the mail, no squinting for six digits.

  • Found even when the code lands in Updates or Promotions.
  • Dates, order numbers and promo codes never masquerade as codes.

Magic links open themselves.

When a service sends a sign-in link instead, the notification offers Open link and lands you in your browser, signed in. The rule behind it is strict on purpose: only a secure link on the sender's own site ever opens. Anything wrapped, foreign or ambiguous stays an ordinary notification.

  • HTTPS only, the sender's own domain only, re-checked at the click.
  • Prefer it quiet? One switch in Settings turns both off.
Cobalt Books
Sign-in link from Cobalt Books
Open link
Opens cobaltbooks.com in your browser, already signed in.
Secure links on the sender's own site only. Anything else stays a plain notification.
Apple × Google

Right at home
on your Mac.

Get out of the browser. Clementine talks straight to the Google APIs, feels like it shipped with macOS, and puts your Mac's own silicon to work: the AI can run right here, on this machine.

Apple Silicon

Native and feather-light. Opens before the browser even loads.

Gmail Search

The full power of Gmail-backed search, every time.

Menu Bar Extra

Peek at your inbox without leaving what you're doing.

Smart Notifications

On your schedule: quiet during a Focus, loud when it counts.

Calendar Invites

See your day and RSVP to invitations without leaving the app.

Real Profile Photos

Google and Apple Contacts photos, right where you'd expect.

Keyboard-First

Every shortcut and swipe gesture you'd expect on macOS.

Tracking Prevention

Reads privately, blocks trackers from 75+ services.

AI on Your Silicon

Summaries and drafts written by your own Mac: a Qwen3 model through MLX, on the GPU already in this machine. No key, no cost, no mail leaving home.

Lightweight & fastDark mode reformattingSwipe gesturesIn your DockMultiple windowsSharingImage markupContinuity Camera

Calm AI

Help that waits
to be asked.

No autopilot, no pop-ups, nothing humming in the background. It waits until you ask, then summarizes the thread or writes the draft.

The gist, in one tap.

Eleven replies deep? One click turns the whole thread into a paragraph that says exactly what's being asked of you. Foreign-language mail translates in place, with the original one click away.

  • Summaries read the full thread, not just the last note.
  • Search in plain English; it maps to real Gmail operators.
  • Nothing runs in the background, only when you click.

Fast and effortless writing.

Tell the AI what to say and it drafts the reply in your voice, calibrated from how you actually write. Select a sentence to rewrite just that. It hands everything back to you; it never sends on its own. And it reads like you wrote it, because a draft nobody would believe you sent is a draft you can't use.

  • It learns your voice from your own sent mail.
  • None of the AI tells: no em dashes, no "I hope this finds you well."
  • Rich text, templates, schedule send, and undo send, built in.
  • You're always the last set of eyes before it sends.
A model is built in. Or bring your own.
Built-in local (MLX)AnthropicOpenAI

On Apple silicon, every AI feature can run on your own Mac: no key, no cost, no mail leaving the machine. Prefer a frontier model? Connect your own Anthropic or OpenAI key and it's used as-is. No markup on usage, no lock-in, and your mail is never sent off to train anyone's model.

For builders & agents

Give your agent
an inbox.

Clementine already holds your authenticated Google connection, so the clem CLI works the second you install it. No server to run, no OAuth to wire. Pipe threads into any model, serve them over MCP, or hand your agent a ready-made Claude Code skill: one button in the app copies it.

Reads and drafts are always allowed; every write needs a permit only you can grant, and every action lands in an audit log.

  • $ clem inbox --needs-reply --json
  • $ clem summarize 19a2f4
  • $ clem draft --to nadia@harborline.co --subject "Rates"
  • $ clem mcp serve
◇ Works with the Model Context Protocol
Built for privacy

Nobody reads
over your shoulder.

Clementine keeps your data and your tokens on your device, and connects straight to the Gmail API. No intermediary sync service ever touches your mail.

On-device storageDirect to the Gmail APINo sync serverAI can run entirely on your Mac75+ trackers blocked
Read the full privacy policy

and now, the good part

$49.99. Own it forever.

Every email app wants rent.

They rent you your own inbox, month after month, and the app gets a little worse every year because it no longer has to earn you. Clementine is yours: $49.99 once, own it forever, every update included. Rather ease in? $29.99 a year, and the lifetime is always waiting.

Own it
Lifetime Licence
$49.99once, forever

One payment. Every update included. Nothing renews, nothing expires.

  • Unlimited Google accounts & spaces
  • Views, VIPs & a morning brief that sorts your day
  • Instant AI, fully on your Mac: summarize, draft, translate
  • Or bring your own AI key, never marked up
  • The full clem CLI & MCP server for your agents
  • Every future update, included forever
Download the free trial Beta

Starts with 14 days free. The whole app, no card required.

Yearly Licence
$29.99a year

The same whole app, while you decide. Renews yearly, cancel any time.

  • Everything the lifetime licence has
  • Updates included while it's active
  • Go lifetime whenever you're ready
Start the same free trial

Why own it?

Because you should own your tools.

Buy it once and it's yours: every account, every feature, every update we ever ship. That's the deal desktop software used to be, and it still works.

Because our costs don't scale with your usage.

AI runs on your Mac, or on your own key, never marked up. Reading your mail costs us nothing, so one payment really can cover every update we ever ship.

Because deciding takes time.

That's all the yearly licence is: the same whole app for $29.99 a year while you make up your mind. Any year you're ready, one $49.99 payment makes it yours for good.

Fair questions

Before you
commit $49.99.

Will it run on my Mac?

Clementine needs macOS 15 or later. The built-in local AI model needs Apple silicon; everything else, including AI with your own Anthropic or OpenAI key, works on any Mac that runs macOS 15.

Lifetime or yearly, what's the difference?

Same app either way. $49.99 once makes it yours forever, every update included. $29.99 a year is for easing in: it renews until you cancel, and you can switch to lifetime whenever you're ready.

Why offer a lifetime licence?

Because subscription-only software slowly turns against the people paying for it. When the money renews by itself, features start serving retention instead of you, and the app gets a little worse every year. There's a word for that: enshittification. We hate it. So you pay once, own Clementine forever, and the only way we earn the next sale is by making it worth recommending. The yearly licence is there for easing in, but the lifetime is the point.

How many Macs does one licence cover?

Your licence covers the Macs you personally use. Buy it, sign in to Gmail as usual, and your mail never touches our servers because we don't run any.

Is the AI optional?

Yes, and it's off until you turn it on. Each AI feature is a separate opt-in, nothing runs in the background, and nothing ever sends or deletes mail on its own.

What does “every update included” mean?

Exactly that, on the lifetime licence: $49.99 once buys the app and every update we ever ship. No upgrade fee, no “version 2” repurchase. The $29.99 yearly licence includes every update while it's active.

Can I use it today?

Yes. The beta is open: download it, connect your Gmail, and you have the whole app free for 14 days, no card required. When you're ready, one $49.99 payment makes it yours forever, or it's $29.99 a year while you decide.

p.s. come on in

Your inbox, finally at home.

Pour every Google account into one native Mac app. 14 days free, then own it for $49.99, or $29.99 a year while you decide.