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Killer Sudoku!

Killer Sudoku!

Logic puzzles for your brain

1.9K ratings
290 reviews
🎮 Games
📚 Education
🧩 Puzzle
Free
In-App Purchases

Details

  • Released
  • Updated
  • May 26, 2011
  • June 20, 2020

Features

Developer

Sarah Pierce
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Killer Sudoku! screenshot #1 for iPhone
Killer Sudoku! screenshot #2 for iPhone
Killer Sudoku! screenshot #3 for iPhone
Killer Sudoku! screenshot #4 for iPhone
Killer Sudoku! screenshot #5 for iPhone
Killer Sudoku! screenshot #6 for iPhone
Killer Sudoku! screenshot #7 for iPhone
Killer Sudoku! screenshot #8 for iPhone
iphone
ipad
🧾$0.99 - $4.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐290
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📝3+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
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About

This app offers a digital version of Killer Sudoku, a logic puzzle that combines traditional Sudoku rules with region sum constraints. It features an intuitive interface with specialized tools for note-taking and puzzle solving, designed to be superior to paper-based play.

✓Dual keypads for notes and answers
✓Multi-square note entry
✓Rearrangeable combination lists
✓Quick sum and combination list buttons
✓Built-in mini calculator
✓Undo/redo functionality
✓Mistake highlighting
Show original description

What users say

Summarized from real user reviews of Killer Sudoku!. Based on 1.9K reviews and a 4.8/5 average, it highlights the 5 positives and 3 negatives reviewers mention most about this game.

Positive things

  • 👍Excellent user interface
  • 🚀Smooth gameplay
  • 💡Helpful tools (calculator, combo lists)
  • 🔒No ads or in-app purchases
  • 👍Intuitive controls (separate keypads)

Negative things

  • 🐛Occasional crashes or bugs
  • 🔍Limited free puzzles
  • 💰Paid puzzle packs can be expensive
See all reviews

What's New in Killer Sudoku!

4.1

June 20, 2020

- Landscape is back on iPad! - Bug fix for "Puzzle complete" problem Thank you to everyone who emailed with bug reports and feedback about the recent update. Your emails help me get things fixed faster! Please let me know if you have any issues with the latest version. Best, Sarah

More
10

In-App Purchases

$0.99

Easy puzzle pack #1

50 new easy killer sudoku puzzles!

User reviews

Most RecentHighest RatedLowest Rated

Challenging puzzles, no ads

This is the level of difficulty of puzzle I’ve been looking for. Really excellent. Handy calculator and combinations tools.
LadyarkhamLadyarkham

My forever game

Killer sudoku is awesome, and this version is the best because it lets me focus on strategy rather than too much math. By highlighting cells, it will add them for me. If I want to know all possible combinations, it will show me. When I have done all puzzles, I download the game again and start over. This is the perfect bathroom companion game.
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LJolieDJLJolieDJ

Definitely great value

This is by far my favorite killer S. Easy to use, no ads, different levels of puzzles, lots of them, great extra features but not intrusive, worth every penny. I especially like the extra features which help with the math to solve some super challenging levels. SO satisfying! I have now bought a second bumper pack.
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Magg1ejaneMagg1ejane

Very addictive

A great little package! Have completed it and was then able to reset and start over!
NavsDaunNavsDaun

Best Sudoku

I have used a few different killer sudoku apps and this is by far the best. Definitely worth the small amount of money to buy a huge number of extra puzzles.
Scobie3Scobie3
See 285 more reviews

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User experience

🐞

Reported Bugs

3 issues

Puzzle progress not saved correctly

Bug

Landscape mode not working after update

Bug

Incorrect puzzle information (cage sums)

Bug
✨

Requested Features

5 requests

Ability to reset/replay completed puzzles

Feature

Option to disable auto-note removal

Feature

More free/affordable puzzle content

Feature

Highlight cells with same numbers

Feature

Landscape mode support for all screens

Feature

FAQ

What is Killer Sudoku?

Killer Sudoku is a logic puzzle that builds upon classic Sudoku. In addition to the standard Sudoku rules (each row, column, and 3x3 box must contain digits 1-9 without repetition), you must also ensure that the sum of the numbers within each outlined region equals the small number printed in the corner of that region.

What are the key features of this Killer Sudoku app?

The app boasts dual keypads for seamless note and answer entry, multi-square note selection for speed, and customizable combination lists. It also includes a quick sum button, a built-in calculator, undo/redo options, mistake highlighting, and auto-note elimination.

Is this app free to play?

Yes, the app is free to download and test. It comes with ten free Killer Sudoku puzzles, offering two puzzles across five difficulty levels. Additional puzzle packs are available for purchase.

What devices is this app compatible with?

While specific device compatibility is not detailed, the app is designed for mobile use and offers features like color schemes and a rearranged interface that suggest adaptability to various screen sizes and touch interactions.

What are the benefits of playing Killer Sudoku?

Playing Killer Sudoku enhances logical reasoning, problem-solving skills, and concentration. The app's features, such as note-taking tools and mistake highlighting, are designed to make the solving process more efficient and enjoyable, potentially improving your ability to tackle complex puzzles.