Best Iodoku Apps & Games

241+ iOS apps & games curated and reviewed

4.7 avg rating
19 free apps & games
Updated May 2026

Sudoku.com is the household name in iodoku, but it's far from the only option. We track 241+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Iodoku

Sudoku.com - Number Games#1

Sudoku.com - Number Games by Easybrain Ltd

Classic sudoku brain puzzle
Editor's Choice
🎮 Games
4.8😐(1.8M ratings)
FreeAdsIn-App Purchases
#7in Games
Sudoku.com - Number Games screenshot 1
Sudoku.com - Number Games screenshot 2
Sudoku.com - Number Games screenshot 3
Sudoku.com - Number Games screenshot 4
Sudoku.com - Number Games screenshot 5
Sudoku.com - Number Games screenshot 6

Challenge your brain with a popular sudoku app, offering classic puzzles for all levels of players. Features include hints, auto-check, notes, and various customization options. Install now for a stimulating way to unwind and keep your mind sharp!

What We Love

  • 🚀 Smooth gameplay
  • 👍 Customizable settings
  • 💡 Helpful hints and strategies
  • 🎨 Appealing visual design

Room to Improve

  • 🔍 Cluttered UI with too many ads
  • 🔋 High battery drain
  • 🐛 Bugs causing crashes and freezes
Braindoku: Sudoku Block Puzzle#2

Braindoku: Sudoku Block Puzzle by Murka Games Limited

Best IQ Game & Brain Training
Strong Contender
🎮 Games
4.7😞(19K ratings)
FreeAdsIn-App Purchases
Braindoku: Sudoku Block Puzzle screenshot 1
Braindoku: Sudoku Block Puzzle screenshot 2
Braindoku: Sudoku Block Puzzle screenshot 3
Braindoku: Sudoku Block Puzzle screenshot 4
Braindoku: Sudoku Block Puzzle screenshot 5

Braindoku is a challenging block puzzle game that exercises your logic and critical thinking skills through engaging Sudoku puzzles. Test your IQ and have fun solving puzzles!

What We Love

  • 👍 Great game
  • 🤔 Challenging and makes you think
  • 🧠 Enjoyable brain exercise
  • 💡 Interesting concept combining Sudoku and Tetris

Room to Improve

  • 🤬 Too many ads
  • 🐛 Game freezing/crashing issues
  • 😡 Unfair game ending mechanics
Iodoku#3

Iodoku by David Seppi

Elegant Sudoku, Evolved.
Worth Considering
🎮 Games
5.0(1 ratings)
FreeAdsIn-App Purchases
Iodoku screenshot 1
Iodoku screenshot 2
Iodoku screenshot 3
Iodoku screenshot 4
Iodoku screenshot 5

Challenge your mind with an intelligent Sudoku app that adapts to your skill level, featuring AI-powered puzzle generation, a personal coach, and customizable design. Learn and improve with interactive tutorials, statistics, and achievements, and upgrade to a premium experience for ad-free and unlimited access to expert guidance.

More Iodoku apps to explore

4
Sudoku Master - Brain Games
Sudoku Master - Brain Games
Sudoku Master - Brain Games
Fun classic math match number
Free

Play classic sudoku puzzles, unlock your brain, and challenge yourself with thousands of puzzles. Install now to become a Sudoku Master!

🎮 Games
(5K)
5
Sudoku by Joseph
Sudoku by Joseph
Sudoku by Joseph
Jigsaw Killer Samurai Puzzles
Free

Experience addictive puzzle fun with Sudoku ;-) on your iPhone or iPad! Challenge your logical prowess with carefully crafted puzzles of varying difficulty levels. Enjoy an ad-free gameplay experience with features like undo and hints. Join millions of players and download now for the ultimate Sudoku experience!

🎮 Games
(2.4K)
6
Merge Hexa Puzzle - Merged Block & Sudoku Quest
Merge Hexa Puzzle - Merged Block & Sudoku Quest
Merge Hexa Puzzle - Merged Block & Sudoku Quest
by Duc Phuong Tran
Free

Merge Hexa Puzzle is a captivating puzzle game where players merge blocks to create larger hexagonal pieces. Challenge your brain with this fun and addictive game today!

🎮 Games
(271)
7
Wood Block 99 - Sudoku Puzzle
Wood Block 99 - Sudoku Puzzle
Wood Block 99 - Sudoku Puzzle
Fun fill cube blast IQ game!
Free

Experience a calming and addictive wood-style puzzle game that combines Sudoku and Puzzle elements. Enhance your spatial geometric skills, relieve stress, and boost brainpower. Enjoy challenging levels, offline play, and a relaxing gameplay experience with no time limits. Master the game by strategically clearing blocks and aiming for high scores. Get ready to relax and have a good time playing this engaging IQ game!

🎮 Games
(4.1K)
8
Sudoku ⋆⋆
Sudoku ⋆⋆
Sudoku ⋆⋆
Unlimited Sudoku Puzzle Games
Free

A classic Sudoku game with unlimited puzzles and customizable themes for all skill levels. Features include unlimited hints, pencil marks for notes, and auto-save functionality. Improve your skills, track stats, and become a Sudoku Grand Master by playing now!

🎮 Games
(18K)
9
Sudoku Blocks: Brain Puzzles
Sudoku Blocks: Brain Puzzles
Sudoku Blocks: Brain Puzzles
Fun block doku puzzle game!
Free

Enjoy the challenge of Sudoku Blocks, a fun block puzzle game that combines elements of block puzzles and sudoku. Clear the 9x9 grid by creating complete lines or 3x3 boxes. Download now and test your skills to beat your high score!

🎮 Games
(5.2K)
10
Block Puzzle - Sudoku Style
Block Puzzle - Sudoku Style
Block Puzzle - Sudoku Style
Official Version
Free

A challenging and addictive block puzzle game where players place blocks in a 9x9 grid to clear lines and boxes for points. Keep playing to beat your high score and earn combos and streaks. Exercise your brain with this official version every day!

🎮 Games
(106K)
11
Sudoku - Classic Sudoku Games
Sudoku - Classic Sudoku Games
Sudoku - Classic Sudoku Games
Sudoku (Soduku) Brain Puzzles
Free

Enjoy endless free Sudoku puzzles with hints and notes for all difficulty levels. Train your brain with this intuitive and polished Sudoku game that offers a challenge or assistance to suit your style. Start playing now!

🎮 Games
(19K)
12
Mathdoku+ Sudoku Style Math & Logic Puzzle Game
Mathdoku+ Sudoku Style Math & Logic Puzzle Game
Mathdoku+ Sudoku Style Math & Logic Puzzle Game
by TPG TECNOLOGIA DA INFORMACAO LTDA
Free

Mathdoku is a fun and challenging puzzle app that combines Sudoku with math equations. Exercise your brain with number-based puzzles of varying difficulty levels. Try Mathdoku now for a stimulating mental workout!

🎮 Games
(429)
13
Big Bad Sudoku Book
Big Bad Sudoku Book
Big Bad Sudoku Book
by Bad Weasel, LLC
Free

Experience the top-ranked Sudoku game loved by millions worldwide. Challenge your mind with various puzzles and levels for endless fun and brain-teasing entertainment. Download now and start playing!

🎮 Games
(1.5K)
14
Killer Sudoku!
Killer Sudoku!
Killer Sudoku!
Logic puzzles for your brain
Free

Embark on a challenging journey with logic puzzles like never before! Solve killer sudoku puzzles with ease using our intuitive app featuring dual keypads, multi-square note entry, and handy combination lists for efficient solving. Enhance your puzzle experience and download now!

🎮 Games
(1.9K)
15
Sudoku·
Sudoku·
Sudoku·
High Quality Sudoku Cards
Free

Pass the time and challenge your mind with this classic Sudoku game featuring daily challenges, four levels of difficulty, note-taking abilities, hints, and more. Download now for mind-challenging fun!

🎮 Games
(17K)
16
Killer Sudoku by Sudoku.com
Killer Sudoku by Sudoku.com
Killer Sudoku by Sudoku.com
Math crossword & number puzzle
Free

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?

🎮 Games
(213K)
17
⋆Sudoku
⋆Sudoku
⋆Sudoku
Classic Sudoku Logic Puzzles
Free

Immerse yourself in the world of classic Sudoku puzzles with an updated, user-friendly app that offers various difficulty levels, helpful hints, beautiful design, and daily challenges to keep your mind sharp. Perfect for beginners and experts alike, this app provides endless fun and relaxation while enhancing your logic and problem-solving skills. Challenge yourself today!

🎮 Games
(161K)
18
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)
19
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)
20
Sudoku
Sudoku
Sudoku
by Mighty Mighty Good Games
$2.99

Join millions of fans and dive into a world of Sudoku puzzles with over 1000 unique challenges on iPhone. Enjoy features like hints, multiple color schemes, and smart options for a fulfilling puzzle-solving experience. Challenge yourself with different skill levels or try Color Sudoku and Expert Sudoku for more variations and fun twists!

🎮 Games
(556)