Free
Rating summary
About
KidsCrypt turns your text into a secret code – just like Julius Caesar used to encrypt his messages.
Type or paste a text on the chalkboard and tap the eye: all letters and numbers are shifted. Use the dial to choose by how many places. Above the dial you can see right away what becomes of "Hello Kid". Share the secret text directly, for example in a message.
To decrypt, clear the board and paste the secret text with the paper clip. If the key is attached, KidsCrypt decrypts it at once. If not, try the keys on the dial.
For experts there is a hidden secret code: a three-digit number shifts the letters at even and odd positions and the numbers even further. Then only someone who also knows the code can read along.
KidsCrypt does not store any texts, needs no account, shows no ads and collects no data.
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What's New in KidsCrypt
2.0
October 25, 2026
Completely reworked for current iPhones: full-screen chalkboard, text easy to read again, keyboard can always be dismissed, "Hello Kid" example above the dial and a hidden secret code. Key A now leaves the text unchanged.
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