Best Killer Sudoku 6X6 Apps & Games

232+ iOS apps & games curated and reviewed

4.7 avg rating
20 free apps & games
Updated June 2026

The best killer sudoku 6x6 apps on iPhone average 4.7★ across 232+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for Killer Sudoku 6X6

Sudoku Puzzle - Brain Games#2

Sudoku Puzzle - Brain Games by Guru Smart Holding Limited

Classic Sudoku & Math Games
Strong Contender
🎮 Games
4.9😊(84K ratings)
FreeAdsIn-App Purchases
#44in Games
Sudoku Puzzle - Brain Games screenshot 1
Sudoku Puzzle - Brain Games screenshot 2
Sudoku Puzzle - Brain Games screenshot 3
Sudoku Puzzle - Brain Games screenshot 4
Sudoku Puzzle - Brain Games screenshot 5
Sudoku Puzzle - Brain Games screenshot 6

Challenge your mind with our stimulating Sudoku Puzzle app. Exercise your brain with endless puzzles and various difficulty levels. Download now and test your problem-solving skills!

What We Love

  • 🚀 Great classic sudoku
  • 👍 Excellent wifi-free sudoku puzzling
  • 👍 Fun and entertaining
  • 👍 Awesome brain work out!

Room to Improve

  • 🔍 Good game lots of ads
  • 🔍 Some level inconsistencies!
  • 🔍 Overrides background sounds
Killer Sudoku by Sudoku.com#3

Killer Sudoku by Sudoku.com by Easybrain Ltd

Math crossword & number puzzle
Worth Considering
🎮 Games
4.7😐(213K ratings)
FreeAdsIn-App Purchases
Killer Sudoku by Sudoku.com screenshot 1
Killer Sudoku by Sudoku.com screenshot 2
Killer Sudoku by Sudoku.com screenshot 3
Killer Sudoku by Sudoku.com screenshot 4
Killer Sudoku by Sudoku.com screenshot 5
Killer Sudoku by Sudoku.com screenshot 6

Experience the ultimate challenge with a math-based crossword app that will test your logic and problem-solving skills. Tackle complex puzzles and enhance your reasoning abilities. Ready to conquer the Killer Sudoku challenge?

What We Love

  • 👍 Challenging game
  • 🚀 Great time-filler
  • 💡 Unique take on Sudoku
  • 👍 Enjoyable experience

Room to Improve

  • 🔍 Too many ads
  • 🔍 Ads interrupt gameplay
  • 🐛 Bugs and glitches

More Killer Sudoku 6X6 apps to explore

4
Sudoku ▦
Sudoku ▦
Sudoku ▦
Sudoku (Soduku) Brain Puzzles
Free

Play Sudoku puzzles on your phone with thousands of free, well-formed challenges. Enjoy a classic Sudoku experience with features like hints, mistake checking, and customizable difficulty levels. Challenge yourself or relax with this timeless brain-teaser.

🎮 Games
(104K)
5
Sudoku - Brain Puzzle Games
Sudoku - Brain Puzzle Games
Sudoku - Brain Puzzle Games
Jeux de Sudoku quotidiens
Free

Enjoy 5000 challenging Sudoku puzzles of varying difficulties every day with this addictive brain puzzle game. Test your logic and memory skills while having a great time - download now for iPhone!

🎮 Games
(300K)
6
Sudoku Mega Bundle
Sudoku Mega Bundle
Sudoku Mega Bundle
Hundreds of Sudoku variations
Free

Enjoy over 100 unique Sudoku game types with varying levels of difficulty, hints, savepoints, and customizable appearances. Choose from a wide range of challenging puzzles and compete on the leaderboard - start playing today!

🎮 Games
(2.8K)
7
Killer Sudoku - Puzzle Games
Killer Sudoku - Puzzle Games
Killer Sudoku - Puzzle Games
Brain Games and Logic Puzzles
Free

"Train your brain with the killer Sudoku puzzle game, featuring thousands of challenging puzzles. Download now for daily challenges and enjoy new themes and board sizes for added fun!"

🎮 Games
(5.8K)
8
Sudoku ∙ Classic Sudoku Games
Sudoku ∙ Classic Sudoku Games
Sudoku ∙ Classic Sudoku Games
Brain Training - Logic Sudoku
Free

Train your brain with thousands of addictive Sudoku puzzles available for all levels, from beginners to experts. Enjoy intuitive gameplay, daily challenges, and personalized settings in this classic Sudoku app. Boost your brain power today!

🎮 Games
(17K)
9
SumSudoku: Killer Sudoku
SumSudoku: Killer Sudoku
SumSudoku: Killer Sudoku
Crossovers with Kakuro flavor
Free

Play a captivating crossover puzzle game blending Sudoku with Kakuro elements. Exercise your logic skills with SumSudoku - enjoy 120 free puzzles in various difficulty levels, no ads, bonus challenges weekly, and helpful features like pencil marks and sum combinations display. Get your brain buzzing!

🎮 Games
(776)
10
Sudoku・
Sudoku・
Sudoku・
by Optime Software LLC
Free

Embark on a Sudoku journey set in feudal Japan with an iOS app offering dual keypad entry, smart notes, error checking, and multiple difficulty levels. Download now for free and experience Sudoku as it should be played!

🎮 Games
(11K)
11
Sudoku (Full Version)
Sudoku (Full Version)
Sudoku (Full Version)
by genina.com
Free

Experience the ultimate Sudoku app with 4 difficulty levels, various input modes, intelligent hints, and the ability to track your progress online through competitions and high scores. Never lose your progress with auto-save and enjoy a seamless puzzle-solving experience. Connect with our support team for any queries or feedback. Follow us on social media for updates and visit our website to start playing now!

🎮 Games
(8.4K)
12
Sudoku ′
Sudoku ′
Sudoku ′
Sudoku free of distraction
Free

A classic number puzzle game app for Sudoku enthusiasts of all levels with unlimited grids, 6 difficulty levels, daily challenges, and user-friendly design. Features include fast gameplay, small storage footprint, intuitive interface, and a variety of customizable options. Available on all Apple devices. Send feedback or request features to help@mindthefrog.com.

🎮 Games
(37K)
13
Sudoku SE
Sudoku SE
Sudoku SE
by Mighty Mighty Good Games
Free

A popular app that offers challenging Sudoku puzzles with various difficulty levels. Test your logic and problem-solving skills for hours of entertainment. Download now to start playing!

🎮 Games
(1.8K)
14
Sudoku: Number Puzzle Game!
Sudoku: Number Puzzle Game!
Sudoku: Number Puzzle Game!
Train your brain, Math puzzle
Free

Play the ultimate Sudoku puzzle game with 15,000 games and various difficulty levels. Enjoy daily challenges, different themes, hints, and more to enhance your gaming experience. Start training your brain now!

🎮 Games
(22K)
15
Sudoku Master®: Number Puzzle
Sudoku Master®: Number Puzzle
Sudoku Master®: Number Puzzle
Soduko - classic offline game
Free

Embark on a journey to become the ultimate Number Master with an immersive Sudoku gaming experience offering a wide range of puzzles for all skill levels. Customize your gameplay with themes and backgrounds, engage in daily challenges, and strive to climb the ranks. Are you ready to unlock the secrets of numerical mastery? Start your journey today!

🎮 Games
(17K)
16
Sudoku: Train Brain Puzzles
Sudoku: Train Brain Puzzles
Sudoku: Train Brain Puzzles
Play Sudoku, enjoy the logic!
Free

Train your brain with this Sudoku puzzle game that offers over 20,000 unique puzzles and 8 difficulty levels. Enjoy features like Smart Hints, Pencil Mode, and offline play. Start playing now for a fun and challenging experience!

🎮 Games
(17K)
17
Sudoku - Daily Puzzles
Sudoku - Daily Puzzles
Sudoku - Daily Puzzles
Daily Sudoku Puzzles Game
Free

Play challenging daily Sudoku puzzles with varying difficulty levels, thousands of free unique levels, and helpful features like notes and boosters. Train your brain, compete with others worldwide, and enjoy a stimulating puzzle experience both online and offline. Install now and sharpen your Sudoku skills!

🎮 Games
(3.7K)
18
Sudoku· Classic Puzzle Games
Sudoku· Classic Puzzle Games
Sudoku· Classic Puzzle Games
Logic Puzzle Math Number Games
Free

Enjoy the classic Sudoku game for free with varying difficulty levels, hints, and features like pencil marks and error correction. Train your brain daily, solve puzzles offline, and save your progress to continue later. Start playing Sudoku today!

🎮 Games
(60K)
19
Sudoku - No ads
Sudoku - No ads
Sudoku - No ads
sudoku solver & sudoku classic
Free

Resolve Sudoku puzzles effortlessly with this ad-free solver app. Enjoy a distraction-free experience while tackling challenging puzzles. Download now and master Sudoku with ease.

📚 Education
(3.5K)
20
Sudoku - Number Brain Games
Sudoku - Number Brain Games
Sudoku - Number Brain Games
Classic Sudoku Math Puzzle
Free

Enjoy the classic Sudoku math puzzle game with 5000 challenging puzzles daily. Choose from four difficulty levels, complete daily challenges, and use helpful features like notes mode, hints, and automatic saving. Challenge yourself and unwind with this popular brain game available on the App Store!

🎮 Games
(9.2K)