Killer Sudoku +

Name: Killer Sudoku +
Rating: 4.8 (300 reviews)
Author: James Gibbs

By: James Gibbs

Puzzle

Features & Capabilities

Killer Sudoku is a fun and challenging variant of Sudoku. If you love Sudoku, why not give Killer Sudoku a try?

As with Sudoku, the objective of Killer Sudoku is to fill the grid with the numbers 1 to 9 such that each row, column and nonet (3x3 group of cells) contains each number only once. In addition, a Killer Sudoku grid is divided into cages, shown with dashed lines. The top-left corner of each cage shows the sum of the numbers within it. The same number cannot appear more than once in a cage.

There are ten puzzles included for free, and thousands available for download. The puzzles are graded into difficulty levels, all excellent quality and with a unique solution.

The app and puzzles are from the maker of https://www.dailykillersudoku.com.

User Growth & Download Statistics

App

By:

James Gibbs

Rating:

4.80

(300) 491 ratings

Version:

1.5.3 Last updated: 2020-12-30

Version code:

839830212

Creation date:

2014-10-25

Compatible devices:

Size:

1.71MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-29

Compare stats and ranking:

Ranking

# 96,596 ▼ 32,429

For Developers

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Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

James Gibbs

Apple Apps Store

https://apps.apple.com/us/app/killer-sudoku/id866856408

User Reviews

Killer Sudoku + offers a fast, intuitive UI, no ads, offline play, and a rich toolkit with many puzzle packs across a wide difficulty range, plus the option to turn off the timer. Recurrent downsides include unclear undo history, a missing pause function, criticized controls, a scarcity of free puzzles and reliance on paid packs, and occasional puzzles without a guaranteed unique solution. Overall strong features and content, but UX and content quality could improve.

Pros

Fast, intuitive user interface
No ads, offline play, and a large variety of puzzle packs at good value
Rich solver aids and features (possible numbers, notes, cage sums, multi-cage selection, calculator)
Wide range of puzzles and difficulties, including high-level packs like Extreme
Timer can be turned off

Cons

Undo tracking is unclear and hard to see what was undone
Pause button is missing
Controls are criticized
Limited free puzzles with many paid packs and some users feel free content is misleading
Some puzzles lack a unique solution

Recent reviews

This is actually an app version of my favorite Killer Sudoku website. Most of the same features that make that the greatest website are present here, too, including: 1. Unique solutions every time! 2. Puzzle packs available for purchase at every level, including my level, the highest one, Extreme. 3. Most puzzles I've purchased are symmetrical, which is my preference. An exception is 100 Extreme Killer Sudokus #2. 4. The timer can be turned off. I never want my Killer Sudokus timed! 5. Pencil marks available, using the same keyboard. 6. An ability to check what's been entered, looking at the whole board. Unlike some other Killer Sudoku apps, it does not show in red a number that can't be correct based on what has already been entered, which I consider to be very distracting, even though some may consider it helpful. 7. The ability to toggle between showing the numbers in entry sequence or number sequence. Although I have given this one a 5-star rating, there is still room for improvements, mainly along the lines of settings that are present in the web version but not here: 1. Remember that the timer has been turned off between games. 2. Turn off "Undo includes cage combinations". In other words, if I am using undo, especially several steps' worth, I don't want my cage combinations reset. 3. If playing on an iPad with a Bluetooth external keyboard, an option to use hardware keyboard entry instead of the app-specific onscreen keyboard. And one more request - Can we please have a version for Android? I have both an iPad and an Android phone, and I'd love to play this on both devices.

by rs*****, 2026-05-28

Love this game and the user interface is very fast and intuitive once you get used to it. It would have been 5 stars+ if it had the ability to colorize squares individually

by Jj*****, 2026-01-01

When you undo something or many things it is hard to find what was undone - I would like to see highlighting added to what was undone or even just allow to undo the undone. It would be nice to highlight different colors (9 colors) however the players wanted to use highlights