What's the code

Send fun hidden code messages

Only for iPhone

Free · Designed for iPhone

iPhone

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!

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

• Bug fixes and performance improvements • Enhanced stability

Version 1.1

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

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

  • Seller
    • Boyle Sim
  • Size
    • 14.6 MB
  • Category
    • Entertainment
  • Compatibility
    Requires iOS 18.4 or later.
    • iPhone
      Requires iOS 18.4 or later.
    • Mac
      Requires macOS 15.4 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.4 or later.
  • Languages
    • English and Korean
  • Age Rating
    16+
    • 16+
    • This app has an age rating of 16+ with content restrictions. Some content may be rated higher, but access is managed by the developer through in-app controls.
    • Learn More
    • In-App Controls
      Age Assurance
      Parental Controls

      Contains
      Unrestricted Web Access
      Messaging and Chat
      User-Generated Content
  • Copyright
    • © 2025 BNC Studio
  • Developer Website
  • Privacy Policy

    • More by Boyle Sim

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