What's the code

Share secret messages with friends! Turn your memo into a fun cipher using a 4-digit passcode.

“What’s the Code?” is a fun and clever app that turns your memo into a cipher with just a 4-digit passcode. Simply enter your message, set a passcode, and tap the “Run” button to transform it into a secret code!

Key Features • Easy to use: Type your memo → Enter a 4-digit passcode → Tap “Run” — done!
• Your secret message appears with a unique paper animation
• Instantly copy or share the result with friends
• Ads are included, but never interrupt your flow — they appear gently only once every 8 runs

Use it when you want to share secret messages with friends,
have fun with inside jokes,
or simply add a mysterious twist to your chats.
Start with “What’s the Code?” today!