Killer Sudoku - Brain Games

Killer Sudoku - Brain Games

Board puzzles for mindfulness

27K ratings
385 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • September 27, 2020
  • August 26, 2026

Features

Killer Sudoku - Brain Games screenshot #1 for iPhone
Killer Sudoku - Brain Games screenshot #2 for iPhone
Killer Sudoku - Brain Games screenshot #3 for iPhone
Killer Sudoku - Brain Games screenshot #4 for iPhone
Killer Sudoku - Brain Games screenshot #5 for iPhone
Killer Sudoku - Brain Games screenshot #6 for iPhone
Killer Sudoku - Brain Games screenshot #7 for iPhone
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About

Engage your mind with a logic-based number puzzle game. Place digits 1-9 into grids, ensuring each appears once per row, column, and mini-grid. Enjoy daily challenges, customizable themes, and intelligent hints for a brain-boosting experience.

Multiple difficulty levels
Daily challenges and trophies
Pencil mode for notes
Highlight duplicate numbers
Intelligent hint system
Customizable themes
Unlimited undo/redo
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What users say

See all reviews
+1

What's New in Killer Sudoku

3.6.3

August 26, 2026

- Bug fixes and performance improvements.

Subscription plans

Sudoku Weekly Subscription

No Ads - 1 week

$1.997 Days
How to cancel Killer Sudoku subscription ⁉️
3

In-App Purchases

$0.99

Battle Tickets *30

Challenge Other Players!

User reviews

Used to be Good

Sorry to say but forced adds is NOT cool. Getting worse recently. Sad to leave but it is not enjoyable playing it anymore.

Constant ad interruptions

This game used to be fine. Now, they constantly interrupt play with a forced ad!! I MEAN every few minutes, if not every minute!! You then have to click out of it and wait for the game to load again!! I’m finding a new one. This one sucks!!

Intrusive Ads

Before you get stuck in a loop of “ads” which are just other games, it’s quite fun.

But once they send you down that ad loop, there’s no escape. You play a different game and there’s no exit button. You close the app, and it just sends you back.

Ads ads ads

Too many ads and ridiculously layered, tiny, repetitive x ads. Ironically, many ads state the advertised game has no ads. Also, why is the pencil in different places?

Interrupting ads

I’ve played this game for a long time. Recently you’ve started ads right in the middle of play. This is disruptive and annoying and if you don’t fix it I’m out

Developer apps

User experience

🐞

Reported Bugs

5 issues

Game freezing and crashing

Bug

Ads causing issues and preventing gameplay

Bug

Losing progress and data after updates

Bug

Numbers not showing up in puzzles

Bug

Battle mode bugs and glitches

Bug

Requested Features

5 requests

Option to turn off timer

Feature

More note-taking options

Feature

Ability to choose difficulty level for daily challenges

Feature

Bring back seasonal challenges

Feature

Improve battle mode matchmaking and ad issues

Feature

FAQ

What is this app about?

This app is a logic-based number puzzle game where the goal is to place digits 1 through 9 into a grid. Each number must appear only once in each row, column, and mini-grid. It's designed to be a brain game that enhances logical thinking and memory.

What are the key features of this Sudoku app?

Key features include puzzles across four difficulty levels (easy to expert), daily challenges with trophies, a pencil mode for notes, duplicate highlighting to prevent errors, intelligent hints, customizable themes, and quick filling options. It also offers unlimited undo/redo and auto-save functionality.

Is this app free to play?

Yes, the app is free to download and play. It offers a large number of challenging puzzles daily. While the core game is free, it does include in-app purchases and advertisements.

Can I play this game offline?

Yes, the app supports both online and offline play. You can enjoy the Sudoku puzzles anytime and anywhere, whether you have an internet connection or not, without losing your progress.

Who is this app designed for?

This app is suitable for both Sudoku beginners and advanced players. It's designed for anyone who enjoys logic puzzles, wants to improve their cognitive skills, or is looking for a mentally stimulating way to pass the time.