Killer Sudoku: Sum Puzzle

Cages, sums and pure logic

Free · Designed for iPad. Not verified for macOS.

Classic Sudoku meets cage sums. Solve at your pace with pencil notes, hints, undo and three difficulty levels — fully playable offline. Killer Sudoku combines classic Sudoku logic with arithmetic. Every cage has a target sum, and digits inside a cage cannot repeat. THREE DIFFICULTY LEVELS Choose Easy, Medium or Hard, whether you are learning cage logic or looking for a tougher daily challenge. TOOLS THAT HELP YOU THINK Use pencil notes, unlimited undo and two free hints per puzzle. If you need another hint, you can choose to watch a short rewarded ad. DESIGNED FOR FOCUS A clear board, pauseable timer, saved games and best-time records keep the puzzle in the spotlight. There is no account and no timer pressure. PLAY OFFLINE Generated puzzles and all core gameplay work without an internet connection. AVAILABLE IN 16 LANGUAGES English, Vietnamese, Spanish, Portuguese, French, German, Italian, Indonesian, Hindi, Japanese, Korean, Chinese, Russian, Turkish, Thai and Polish. Train your logic and mental math with a fresh Killer Sudoku puzzle whenever you want.

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The developer, NKKtech Global Pte. Ltd., 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

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  • Data Linked to You

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

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

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Accessibility

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Information

Seller
NKKtech Global Pte. Ltd.
Size
25.5 MB
Category
Puzzle
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 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 and 15 more
  • English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Turkish, Vietnamese
Age Rating
4+
Copyright
© 2026 NKKtech Global Pte. Ltd.
  • Developer Website
  • Privacy Policy

    • More by NKKtech Global Pte. Ltd.

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