Killer Sudoku 4+

Clean, simple, uncluttered

Ian Sutton

Designed for iPad

    • 4.8 • 57 Ratings
    • Free
    • Offers In-App Purchases



Just Killer Sudoku. Simple, clean, uncluttered.

Killer Sudoku (aka Sumdoku / Mathdoku) is a Sudoku variant where cells are grouped into cages and the sums of the values in each cage are given. Once you know Killer, you will never go back to Classic again...

The app includes lots of cute little 4x4 and 6x6 puzzles, perfect for beginners, with contextual hints to help you learn Killer techniques interactively. From there you graduate to 23 levels of chunky 8x8 and full-size 9x9 puzzles, guaranteed to stretch any brain. Are you one of the very few who can conquer 9x9 level 15???

The app has everything you could wish for: gazillions of puzzles at all sizes and levels, automatic notes, drag copy and repeat entries, sum calculator, cage summer, progress validator, and hints.

What’s New

Version 3.1.1

Minor updates

Ratings and Reviews

4.8 out of 5
57 Ratings

57 Ratings

dncingthrghlife ,

User-friendly and makes killer sudoku teachable!

This is my favorite app for killer sudoku. As advertised, it has a clean and uncluttered aesthetic. For my purposes, I appreciate the “validations” set up within the gameplay. (Which is the equivalent of pestering your teacher to make sure that your work is on the right track.) I find that this structure helped me master the techniques faster and provided positive reinforcement that I needed while facing my childhood fear of “killer” sudoku.
I recommend this app for beginners and expert players alike!

Ln_ ,

Love it

Like how it progresses from easy to difficult

Duoda2 ,

Disable ads

Best killer sudoku out there but I wish there was a way to pay to disable ads

Developer Response ,

Thanks so much for a nice review Duoda! You can buy Premium to remove ads and also get unlimited validations.

App Privacy

The developer, Ian Sutton, 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:

  • Location
  • Identifiers
  • Usage Data

Data Linked to You

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

  • Location
  • Identifiers
  • Usage Data

Data Not Linked to You

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

  • Diagnostics

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

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