Your inbox, as a stack of cards.
One email at a time, and the card already knows what it wants. Swipe it done, swipe it to later, reply with your voice, or tap the one thing it asks for. Outlook now, Gmail next.
Built in the UK. Your mail stays in your Microsoft or Google account. Thumbmail never keeps the body of a message.
Every email, one swipe.
Right, and it is archived. Left, and it is back when the message says. Up, and you have replied in your voice. Down, and you never hear from that sender again. When an email asks for one thing, a code, a link, a parcel, an invoice, an invite, the card carries that too, one tap away. No folders, no labels, no rules to set up.
Done
Swipe right. The email is archived in your mailbox, not deleted. It is still searchable, it is just not in your way.
The next card is already there.Later
Swipe left and it is gone. Thumbmail picks when it comes back from what the message says: the morning before a date it names, tonight or tomorrow morning for a question.
The card says when, with Change and Undo beside it.Reply
Swipe up, tap the microphone and speak. Thumbmail turns what you said into a clean reply in your voice. You see the draft before it goes.
Nothing is sent without your tap.Never again
Swipe down. Thumbmail sends the unsubscribe and archives anything else they send. If there is no unsubscribe link, it still archives the rest.
The one place you are asked to confirm.Nothing needs you.
The reward is a cleared inbox and a locked phone. No streaks, no confetti, no badge. Just the time.
Never makes you wait.
Thumbmail is written for iPhone, not ported to it. Every swipe lands the moment your thumb lets go, the next cards are already loaded, and nothing in the app is a web page pretending to be a screen.
Question before your mail
Everyday or Creator. Then sign in with Apple, connect an inbox, and Thumbmail reads the last week of mail while you watch the first cards arrive. It tells you when your inbox is ready.
Spinners
Nothing spins. While Thumbmail is working, a band of light moves over the stack and your cards stay where they are. Offline, it says so.
Waiting after a swipe
The card goes as you let go. The archive happens behind it, a few seconds later so an Undo costs nothing, and is retried if the network drops.
Web views for mail
Emails render as native text. Nothing in the stack is a browser in disguise.
You only see what needs you.
Thumbmail reads each email before you do and sorts it into two piles. The first pile is people who need an answer from you. The second is everything else, which you can clear in seconds or ignore entirely.
Every card says what the email wants, in one line, and when it is one thing, carries it: a code to copy, a parcel to track, an invoice to pay, an invite to accept. If Thumbmail gets it wrong, move the card to the other pile and that sender stays there.
Creators get their own sorting: paid pitches and gifted offers in the first pile, with the fee as written, and anything that looks like a scam named as such.
- Thumbmail never keeps the body of a message.
- What it keeps is gone after 90 days, or the moment you disconnect.
- Nothing is ever deleted from your mailbox.
- Nothing is sent without your tap. All of it, in writing.
Needs you
- Priya Shah: Q2 VAT figures to confirmquestion
- Anna at Hinthome: can you join Thursday?invite
- Stripe: action required on your accountdeadline
- Dad: photos from Sundaypersonal
Everything else
- Rightmove, Amazon, LinkedIn, Uber Eats and 19 moreclear all
"yeah tell priya the box six number is right, box seven should be twelve four not twelve nine, and thanks for catching it"
Hi Priya,
Box 6 is correct as shown. Box 7 should be 12,400 rather than 12,900. Thanks for catching that before filing.
Best,
Farhan
Reply by talking, not typing.
Tap the microphone and say what you want to say, however roughly. Thumbmail already knows who you are replying to and what they asked, so it writes the reply properly, in your voice. Your speech is turned into text on the phone.
You always see the draft before it goes. Nothing is sent without your tap.
Free to clear. Pay to go faster.
One inbox, unlimited swipes, forever free. Pro connects five inboxes and never runs out of voice replies.
- Five inboxes
- Unlimited voice replies
- Every category
- Notifications that say what the email wants
Pro is a subscription bought in the app through the App Store, at £6.99 a month or £59 a year. It renews at the same price at the end of each period until you cancel, at least 24 hours before the period ends, in your Apple ID subscription settings. Prices outside the UK are shown in the app before you buy.
Questions people ask.
Which email accounts work?
Outlook.com and Microsoft 365 now. Gmail and Google Workspace are built and switched on for a small test group while Google finishes verifying Thumbmail; they come to everyone after that. More than one inbox goes on the same stack.
Does Thumbmail store my email?
No. Your mail stays in your Microsoft or Google account. Thumbmail keeps who a message is from, its subject, a short preview and what it worked out about it: the pile, a one-line summary, a code or a date if there is one, and the one thing the message asks you to do. It never keeps the body, and everything it keeps is deleted after 90 days or when you disconnect.
Thumbmail's own database is in Ireland. Sorting and drafting use a language model run by Anthropic in the United States, which may not train on your mail and does not keep it. The privacy page has the rest.
What does Done actually do?
It archives the email in your mailbox. Nothing is ever deleted, and everything stays searchable. It is just not in your way any more.
Can it send a reply without me?
No. You always see the draft first, you can edit it, and nothing is sent without your tap.
What does it cost?
One inbox with unlimited swipes and ten voice replies a month is free, and stays free. Pro is £6.99 a month or £59 a year, for five inboxes, unlimited voice replies and every category.
What happens to my mail?
It stays in your mailbox. Thumbmail never keeps the body of a message, and what it does keep, who it is from, the subject, a short preview and what it worked out, is gone after 90 days or the moment you disconnect. Nothing is ever deleted from your mailbox, and nothing is sent without your tap.
Thumbmail's own database is in Ireland. Sorting and drafting use a language model run by Anthropic in the United States, which may not train on your mail and does not keep it.
When can I use it, and on what?
On iPhone, through TestFlight, in small groups through the autumn of 2026. The App Store release is planned for early 2027. Thumbmail is written for iPhone rather than ported to it, and there is no Android version planned.
The beta runs in small groups this autumn.
Leave your email and we will send one card when your group opens. Swipe right on it, and nothing needs you.