The #1 email client for people with too many inboxes

STAMP is the focused email client that tells you which seven threads actually matter today, and quietly hides the other 40. Three accounts, one window, zero second-guessing.

No credit card · macOS · 28-second setup

STAMP app showing 7 urgent emails across all accounts with priority tags like Reply needed, VIP, Urgent, and Frustrated
Urgent · 7
Inbox · zero

A confession

Email broke years ago. We just stopped admitting it.

  • You open your inbox and forget what you came for.
  • Three accounts. Two phones. One panic attack at 9 a.m.
  • Important threads buried under newsletters you never signed up for.
  • You answer fast emails. The hard ones rot for days.
  • By Friday, you owe twelve people a reply and remember none of them.

Every email client on your Mac was designed in 2007 for a world that gets 12 emails a day. You get 200. STAMP is built for that world.

How to reach inbox zero on macOSStop newsletter overwhelmWhy your inbox feels broken in 2026

Imagine your morning

It's 8:42 a.m. Coffee's hot. STAMP is open.

Forget every email habit you have. Picture this instead.

STAMP urgent triage view with 7 priority emails and clear tags for each thread

  1. STEP 01

    You open STAMP.

    No 'inbox 1,247 unread'. Just a calm headline: 'Working late, Simon. 7 need attention.' That's the whole list.

  2. STEP 02

    You stamp through them.

    Reply needed. VIP. Urgent. Frustrated. Each thread carries a tag that tells you why it landed in front of you, before you even open it.

  3. STEP 03

    You close the laptop.

    Inbox is at zero. Not pretend zero. Real zero. The 41 unread newsletters are still there if you ever want them. You won't.

7Threads that matter today
0Newsletters in your face
1Window. Every account.

What you get

Six ideas. Ruthlessly executed. Zero filler.

STAMP is opinionated software. We left out 90% of what other clients ship, and the 10% we kept, we sharpened until it cut.

Triage

Urgent first. Always.

STAMP reads tone, sender history, and follow-up patterns. It surfaces the seven threads that actually need you today.

Unified

Every account in one window.

Gmail, Outlook, iCloud, custom IMAP. One inbox. One search. One keyboard shortcut to rule them all.

Clarity

Tags that mean something.

Reply needed, VIP, Frustrated, Work, Personal: auto-applied, never wrong twice. You learn the system in an afternoon.

Private

Your mail stays your mail.

On-device classification. No training on your data. No 'AI summary' shipped to a server in another country.

Snooze

'Not now' that actually works.

Push a thread to Tuesday at 9. STAMP brings it back, in context, with the original tag. Never twice.

Original

An email client with a point of view.

We didn't ship another Gmail skin. STAMP looks, sounds, and behaves like a tool that respects your attention.

A closer look

Every tag has a reason. Every reason has a name.

Other clients hand you a flat list and walk away. STAMP labels every thread the moment it lands, so you know, at a glance, why this one is in front of you.

  • Urgent

    Server down, deadline today, fire to put out.

  • VIP

    Investor, biggest client, your mom. You decide.

  • Reply needed

    Question asked. Ball in your court.

  • Frustrated

    Third follow-up. Tone shifted. Don't ignore.

STAMP labels each email with priority tags including Urgent, VIP, Reply needed, and Frustrated

Who STAMP is for

If your inbox decides your week, STAMP is the fix.

Founders

Investor email and customer email cannot live in the same triage queue. STAMP keeps the right thread in front of you when you have nine minutes between meetings.

How founders use STAMP

Freelancers

Three client domains, one personal Gmail, a dormant iCloud. STAMP collapses them into one calm list, and you stop billing for time spent searching.

Read the freelancer breakdown

Operators

If your week is twenty Slack DMs and three hundred emails, STAMP is the layer that decides which fifteen of those emails get a human reply today.

How operators triage 300 emails
Browse all 15 use casesOr read the STAMP blog →

Early access user · Founder, design studio

One window. Every account.

Plug in everything. Check one inbox.

You probably forgot how many email accounts you actually own. STAMP connects them all and stops asking which one to open.

Gmail

Personal, work, that side project

Google Workspace

Every domain you bill from

Outlook & 365

Including shared mailboxes

iCloud Mail

The one you forgot to check

Custom IMAP

Your hosted domain. Yes, even that one.

SMTP relay

Send-only addresses too

Aliases

Reply from the right one, automatically

Unlimited

Pricing doesn’t scale per account

Unified Gmail + Outlook inboxMultiple Gmail accounts, one inboxCustom IMAP + Gmail

A small obsession

We tried really hard to make STAMP so easy you never have to touch the mouse.

Every menu, every action, every account switch, mappable to a single keystroke. No hidden submenu. No right-click. No drag-and-drop. If you can think it, you can press it.

  1. 1Open STAMP. Focus lands on the first urgent thread automatically.
  2. 2Press J / K to move down and up the list, just like a terminal.
  3. 3Press R to reply. Type. Press ⌘ + Return to send.
  4. 4Press E to archive, S to snooze, U to flag urgent, ⌫ to trash.
  5. 5Press ⌘ + K to fly anywhere: account, label, search, contact.
  6. 6Inbox empty. Lid closed. Mouse dust untouched.

The shortcuts you'll learn in 4 minutes

Next threadJ
Previous threadK
ReplyR
ArchiveE
SnoozeS
Mark urgentU
Jump anywhere⌘K
Send⌘↵
Trash⌫
All shortcuts?

Press ? any time to see every shortcut. Forget one and STAMP shows it on hover, in line.

Anatomy of a calm inbox

Every pixel earns its place.

No 4-pane folder tree. No sidebar of inboxes you forgot you had. Just the seven things that decide your morning, and the controls to act on them.

Smart greeting
Headline

Smart greeting

It opens with a number, not a number badge. Seven need attention. Forty-one unread. Done thinking.

One inbox. Every account.
Accounts

One inbox. Every account.

Gmail, Workspace, Outlook, iCloud, custom IMAP. Switch with one keystroke.

Five views. No clutter.
Triage

Five views. No clutter.

Urgent. Inbox. Unread. Snoozed. Drafts. The five questions you actually ask. Nothing else.

Calendar, search, compose.
Toolbar

Calendar, search, compose.

One tap each. Or use the keyboard. The mouse is optional.

Three threads. Three reasons. One glance.
Auto-tags

Three threads. Three reasons. One glance.

STAMP reads tone, sender history and follow-up patterns. Then it labels every thread with a reason: VIP, Urgent, Frustrated, Reply needed. You see why this one is in front of you before you open it.

Early access pricing

Lock in $8/month. Forever.

Join the early access list and pay early-access pricing for as long as you stay. The day STAMP launches publicly the price goes up. Yours doesn't.

  • Connect unlimited Gmail, Outlook & iCloud accounts
  • On-device priority triage with smart tags
  • Snooze, recap reports, and keyboard-first workflow
  • Lifetime early-access price lock

Founder plan

$8per month, locked

Billed monthly. Cancel any time, by clicking one button.

Claim my seat

No card today · Invite within 7 days

Affiliate program

Bring friends.
Stop paying for STAMP.

We give you 2 free months for every new user who signs up on your link. Six friends, and you ride free for a whole year. No cap. No expiry. The math just keeps working.

STEP 01

Share your link

Generated the moment you sign up. Same link forever.

STEP 02

Friend joins STAMP

They land on a page that already knows you sent them.

STEP 03

+2 months, on the house

Credit applied automatically. Stack as many as you like.

Get my referral linkRead the fine print

Your year, with referrals

Live math
M1FREE
M2FREE
M3FREE
M4FREE
M5FREE
M6FREE
M7FREE
M8FREE
M9FREE
M10FREE
M11FREE
M12FREE
1 friend2 months free$16 saved
3 friends6 months free$48 saved
6 friends12 months freeFull year, $0

Credits apply once the referred friend completes their first paid month. No cap on stacking. If they cancel inside 30 days, the credit reverses. Affiliate program runs on top of the early-access price lock.

Questions, answered

Everything you'd ask before signing up.

What is STAMP?+

STAMP is a focused email client for macOS that unifies every inbox you own and surfaces only the threads that actually need a reply today. Think 'inbox zero' that maintains itself.

Which email providers does STAMP support?+

Gmail, Google Workspace, Outlook, Microsoft 365, iCloud, and any custom IMAP/SMTP account. Connect as many as you want. Pricing does not scale per account.

Will STAMP read my email content?+

Classification happens on your device. STAMP does not train models on your messages, does not send your inbox to a third-party server for processing, and does not sell your data. Ever.

How is STAMP different from Superhuman, Gmail, or Apple Mail?+

Superhuman is fast keyboard navigation. Gmail is a server. Apple Mail is a list. STAMP is a triage layer that tells you which seven emails matter today and ignores the rest until you ask.

When can I get access?+

Early access is rolling out now to people on the waitlist. Sign up below and we will email you within a week with an invite.

More answers on the blogOr explore use cases →

One last thing

You've got 41 unread.Tomorrow it'll be 67.Or you could try something different.

Get early access, free

macOS · 28-second setup · No credit card