Cipherkin

A secret worth sharing · Coming to iPhone & iPad

A little mystery.
A lot of meaning.

Some words deserve more than a text bubble. Turn a note into a secret, send it to your person, and let them uncover the magic.

Break the seal

No accounts. No ads. No tracking.

WORDS WITH A LITTLE WONDERMADE FOR YOUR INNER CIRCLESECRETS, WITH PERSONALITY

01 / THE SECRET HANDSHAKE

From your words
to their little adventure.

No new inbox. No friend requests. Just a sealed note and a familiar way to send.

01

Write & seal

Write your note in Cipherkin and seal it. Free notes use Classic Cipher; with the unlock, choose any theme and your own password.

02

Send the mystery

Share the sealed text through Messages or email. If you set a password, tell it to them in person or by a call.

03

Open the moment

Your recipient pastes it into Cipherkin and watches the message reveal itself. Notes with your own password ask for it first.

Creating and opening notes works offline. Sending through text or email uses your usual service. Free notes use a password built into the app, so anyone with Cipherkin can open them: they’re for fun, not for secrets. For a note only your person can open, unlock the full version and set your own password.

02 / SAME SECRET. DIFFERENT WORLDS.

Choose how the
story unfolds.

A spell to break. A mission to uncover. A treasure to find. Each theme changes the whole experience, from sealing to reveal.

REAL SCENES FROM THE APP01 / 04
Classic Cipher: writing a note

A NOTE, WAITING TO BE FOUND

Write a note.

Captured from Cipherkin in development, with a sample note · No encryption takes place here

03 / SMALL PRICE. BIG IMAGINATION.

Start with a secret.
Unlock a world.

Keep it classic for free, or make every message an occasion with the complete theme collection and a password of your own.

The surprise is always free to open.
Recipients can enjoy every premium reveal without buying the unlock, and open password-protected notes with the password you share.

CLASSIC CIPHER

Freeforever

Everything you need to start a little mystery.

  • Create Classic Cipher messages
  • Open messages in every theme
  • No accounts, no ads

Free notes use a built-in password. Anyone with Cipherkin can open them.

THE WHOLE COLLECTION

$1.99one time

Every premium theme, plus your own password.

  • Arcane Runes
  • Secret Agent
  • Pirate’s Code
  • Set your own password
  • Future themes included

Planned one-time in-app purchase (US price). No subscription.

A SMALL APP WITH A SIMPLE PROMISE

No accounts.

No ads.

Works offline.

Made for playful notes, inside jokes, and small surprises.
The connection is yours. Cipherkin adds the ceremony.

YOUR NEXT SECRET IS ALMOST READY

Good things come sealed.

Cipherkin is coming soon to iPhone and iPad.
Keep a little room for mystery.

App Store · Coming soon

Not available to download yet.