What's New

-Bug fixes and performance improvements.

App Description

Sudoku Free Puzzle Game is a welcomed and addictive Brain Sudoku puzzle game on App Store. You can download Sudoku free app for your iPhone. You get 5000+ challenging Sudoku puzzles everyday to one true solution. Killer Sudoku the best puzzle game for your brain, logical thinking, memory, and A GOOD TIME KILLER!

Killer Sudoku is a logic-based number puzzle game and the goal is to place 1 to 9 digit numbers into each grid cell so that each number can only appear once in each row, each column and each mini-grid. With our Sudoku puzzle app, you can not only enjoy sudoku games anytime anywhere, but also learn Sudoku techniques from it.

Key Features
1. Sudoku puzzles come in 4 difficulty levels - easy Sudoku, medium Sudoku, hard Sudoku and expert Sudoku! Perfect for Sudoku beginners and advanced players!
2. Daily Challenges - Complete Daily Challenges and collect trophies.
3. Pencil Mode - Turn on/ off pencil mode as you like.
4. Highlight Duplicates - to avoid repeating numbers in a row, column and block.
5. Intelligent Hints - guide you through the numbers when you get stuck
6. Themes - Choose the theme that makes it easier for your eyes.
7. Long press to fill quickly


On this Brain Sudoku free app, you are also able to
1. Turn on/off sound effects
2. Turn on/off Highlight identical numbers
3. Auto remove notes from all columns, rows and blocks once the number is placed
4. Unlimited undo & redo
5. Auto-save - Pause the game and resume the game without losing any progress
6. Sudoku online & Sudoku offline

You may also find the following Brain Sudoku features useful
1. You can share to your friends via Google+, Facebook, Twitter etc..
2. Use dark mode to protect your eyes
3. Turn on/off timer when you play the sudoku puzzle
4. 100 new sudoku puzzles every week.
5. New types of Sudoku puzzles, like Killer sudoku, letter Sudoku, will be available.
6. Good gameplay
7. Intuitive interface
8. Easy tools, easy control
9. Clear layout


Our free Sudoku puzzle app has intuitive interface, easy control, clear layout and well balanced difficulty levels for beginners and advanced players. It’s not only a good time killer but also helps you think, makes you more logical and have better memory.

When you first open our Sudoku app, you see a guide tour teaching you how to play Sudoku and when you open the puzzle game app for the 100th time, you can see yourself a Sudoku master and a great Sudoku solver. You’d be able to play any web sudoku fast. Come to our Kingdom of Sudoku and keep your mind sharp.

If you have any idea for our Sudoku puzzle game app, or if you have any question about Sudoku and you want to discuss with us, please send us emails at [email protected] We are always here for you.

EULA: https://www.learnings.ai/tos.html
Privacy Policy: https://www.learnings.ai/pp.html

iPhone Screenshots

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Killer Sudoku - Brain Games screenshot 1 Killer Sudoku - Brain Games screenshot 2 Killer Sudoku - Brain Games screenshot 3 Killer Sudoku - Brain Games screenshot 4 Killer Sudoku - Brain Games screenshot 5 Killer Sudoku - Brain Games screenshot 6 Killer Sudoku - Brain Games screenshot 7

iPad Screenshots

(click to enlarge)

Killer Sudoku - Brain Games screenshot 8 Killer Sudoku - Brain Games screenshot 9 Killer Sudoku - Brain Games screenshot 10 Killer Sudoku - Brain Games screenshot 11 Killer Sudoku - Brain Games screenshot 12 Killer Sudoku - Brain Games screenshot 13 Killer Sudoku - Brain Games screenshot 14

App Changes

  • October 23, 2020 Initial release
  • November 12, 2020 New version 1.3.1
  • December 10, 2020 New version 1.3.3
  • August 06, 2021 New version 1.9.0
  • September 15, 2023 New version 2.1.5
  • October 03, 2023 New version 2.1.6
  • November 03, 2023 New version 2.1.8
  • November 14, 2023 New version 2.2.0
  • March 19, 2024 New version 2.8.10

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