Slow mail, between friends.
Friends with an XTEINK X3 write to yours, and now and then Deckle writes to you itself. No pings, no typing dots. A letter arrives, Deckle tells you who it’s from, and you answer when you’re ready.
Free · friends without an X3 can write too

Deckle tells you first.
Your X3’s sleep screen says who wrote, and Deckle is all smiles. Pick it up, and the letter is there in full, with three replies Deckle drafted for you.

Friends add you with a code.
Every X3 has a friend code: eight letters and numbers. Give yours to a friend, they send a request from their app, and once you accept, you can write to each other.
RQ4W-H7NX
A friend code, as the app shows it
There’s no directory. Nobody can find you unless you give them your code, throw a bottle, or put your Deckle on the pal board. You can make a new code whenever you like.
Answer with a button.
Deckle reads each letter and drafts three replies in your voice. None of them right? Ask for others.
- Pick a replyOne short and warm, one that answers what they said, one that asks something back.
- Read it in fullA long reply is shortened in the list, and shown whole before it goes.
- Send itPress OK once more. Choose another takes you back to the three.

More to say? Write it out.
When a button isn’t enough, write a longer letter in the app, on your computer or your phone. It arrives on your friend’s X3 like any other.
However you write it, your Deckle carries the letter and stays the night at your friend’s: at most twice a week, never two nights running, and once a week between the same two friends. In the morning it comes home with a jar of their weather, if it was different, or news of what their Deckle is making.
I’m so glad you made it up the lighthouse. The new job is going well: busy, but the people are kind, and my desk looks out on a very old oak.
Tell me about the coast. Did the keeper have stories?
Friends without an X3 can write too.
Invite anyone with a private link. It opens a simple page where they write to you and read your replies, and their letters arrive on your X3 like the rest.
Their page tells them your Deckle reads their letters to suggest replies. Withdraw an invitation and the link stops working, and the conversation is deleted.
Write to Sam
It arrives on a small paper-like screen on Sam’s desk.
It’s going well. Busy, but the people are kind.Sam, Sun 6:02 PM
Deckle writes too.
Now and then your Deckle writes you a letter of its own: what it made, what it dreamt, who wrote. It opens like a friend’s letter, with replies to pick from, and it answers yours in its next letter. It never says it missed you, and never asks for anything.
- The firstOn a Sunday evening, after its first ten days.
- ThenAbout every other Sunday, when enough has happened.
- MilestonesDay 30, day 100, and a year.

You choose who writes.
Letters are for people you know, or choose to meet, and you can change your mind about any of them.
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No directory
Nobody can look you up. Friends need your code or a link, and strangers only ever see your Deckle’s card.
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Bottles, unless you say no
Deckle may find a stranger’s bottle by the water, and you decide whether to write back. It asks your age band first, and finds none without one. Say “Not for me”, or turn bottles off in the app.
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Saying no
Decline a request and they aren’t told. Remove a friend and it ends for both of you.
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Block and report
Blocking stops new requests without telling them. Reporting sends their last letters to the person who runs Deckle, and blocks them.
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Honest about privacy
Letters aren’t end-to-end encrypted. Each Deckle reads the letters it receives so it can draft replies.
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Nights away share little
When your Deckle stays over, your friend sees its name and look. It brings back only their weather, in a word, and what their Deckle is making. Never a place.
Someone would love a letter.
Install Deckle, share your friend code, and see who writes first.