Codicino: Secret Codes

Printable cipher wheel game

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Kids invent a real cipher, encode a note, and print a paper wheel to keep playing away from the screen. Two historic codes, explained simply. No ads & data, fully offline Codicino — The Secret Code Game With Codicino, kids invent a secret code, encode a note, and swap it like real secret agents. The best part: the game keeps going away from the screen, on paper. How it works Your child picks a code, types a sentence, and watches it turn letter by letter into a mysterious message. Copy it onto a slip of paper — only someone with the same key can read it. Two real ciphers - The Caesar cipher, the same one Julius Caesar used 2,000 years ago: turn the wheel and the alphabet shifts - The keyword cipher: pick a word and the alphabet gets scrambled These are the first real concepts of cryptography, explained in plain words. A dedicated section tells kids what a code is, what a key is, and why — surprise — codes can be cracked. It's a fun game, not a safe. Off the screen, onto paper A grown-up prints a PDF with the cipher wheel to cut out and assemble with a split pin, plus the conversion table and instructions. From there, no device is needed: kids swap paper notes at school and decode them with the wheel in hand. To share a code between friends there's a QR that holds the key — never the messages — created and scanned from the Parents Area. A kind game Codicino asks kids for a small promise: codes are for playing and keeping secrets between friends, never for mocking or leaving anyone out. Made for families No data collection. No accounts, no ads, no tracking. Everything runs on the device, even without internet. A protected Parents Area for grown-ups. Build your code, print the wheel, and swap secret notes.

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The developer, Francesco Sarpellon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    Francesco Sarpellon
    Size
    18 MB
    Category
    Education
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and Italian
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 LoopSpark Studio
  • Privacy Policy

    • More by Francesco Sarpellon