Nball - Bulls and Cows

Code-breaking number puzzle

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

Nball is a code-breaking puzzle where strike and ball clues lead you to the hidden number. A correct digit in the correct place is a strike, and a correct digit in the wrong place is a ball. The rules are simple, but the reasoning gets deeper as the stages get harder. Features - Puzzles ranging from 2 to 6 digits - Five difficulty levels for each digit count - AI duels where both sides race to crack each other's hidden number - Star ratings and records that show your progress at a glance - Hints and chances to earn extra coins in tight spots Great for players who - Enjoy classic deduction games like Bulls and Cows - Want a quick puzzle that still makes them think - Like single-player progression with steadily rising difficulty

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Updated the privacy policy link.

The developer, Jiwon Park, 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 Not Collected

    The developer does not collect any data from this app.

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

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

    Seller
    Jiwon Park
    Size
    55.9 MB
    Category
    Puzzle
    Compatibility
    Requires iOS 14.0 or later.
    • iPhone
      Requires iOS 14.0 or later.
    • iPad
      Requires iPadOS 14.0 or later.
    • iPod touch
      Requires iOS 14.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Kobbokkom