Best Duodoku Apps & Games

221+ iOS apps & games curated and reviewed

4.6 avg rating
19 free apps & games
Updated June 2026

With an average user rating of 4.6★, the duodoku category is one of the App Store's strongest. Browse all 221+ apps and games we track, sorted so the most loved ones surface first.

Top Picks for Duodoku

Big Bad Sudoku Book#2

Big Bad Sudoku Book by Bad Weasel, LLC

Strong Contender
🎮 Games
4.4😊(1.5K ratings)
Free
Big Bad Sudoku Book screenshot 1
Big Bad Sudoku Book screenshot 2
Big Bad Sudoku Book screenshot 3
Big Bad Sudoku Book screenshot 4
Big Bad Sudoku Book screenshot 5

This is a classic Sudoku game with a unique approach to hints and scoring. It offers downloadable themes, challenging campaigns, and features designed to feel like a real paper puzzle book but enhanced with digital tools. Enjoy unlimited free play and a focus on brain-powered solving.

What We Love

  • ⭐ Excellent Sudoku game
  • 👍 Clear and easy-to-use interface
  • 🧠 Keeps the mind active
  • 🕰️ Great time-passer

Room to Improve

  • 🐛 Compatibility issues with newer iOS versions
  • 💤 Slow performance, especially with ads
  • 📢 Intrusive ads in paid version
Sudoku Puzzle Packs#3

Sudoku Puzzle Packs by Thumb Wizards

Brain Fit Challenges
Worth Considering
🎮 Games
4.5😊(394 ratings)
FreeAds
Sudoku Puzzle Packs screenshot 1
Sudoku Puzzle Packs screenshot 2
Sudoku Puzzle Packs screenshot 3
Sudoku Puzzle Packs screenshot 4
Sudoku Puzzle Packs screenshot 5
Sudoku Puzzle Packs screenshot 6

Master Sudoku with a variety of puzzle sizes and difficulty levels. Personalize your experience with colorful themes and sound effects. Track your fastest times and compete with friends.

What We Love

  • 👍 Fun and challenging game
  • 💡 Adjustable difficulty levels
  • 👍 Helpful pencil marking feature
  • 👍 Good for brain exercise

Room to Improve

  • 🐛 Freezing/crashing issues
  • 🔋 High number of ads
  • 🐛 Slow response when inputting numbers

More Duodoku apps to explore

4
Sudoku Now!
Sudoku Now!
Sudoku Now!
#1 Classic Sudoku Brain Game
Free

Engage your mind with a classic number puzzle game offering over 20,000 handcrafted puzzles across five difficulty levels. Enjoy daily challenges, smart hints, and a pencil mode for notes. Play offline with features like unlimited undo and auto-save.

Over 20,000 unique puzzles5 difficulty levelsInstant Input Mode
🎮 Games
(10K)
free with in-app purchases
5
Sudoku ~ Classic Puzzle Games
Sudoku ~ Classic Puzzle Games
Sudoku ~ Classic Puzzle Games
The classic 9x9 number puzzle.
Free

This app offers a classic 9x9 number puzzle experience with adjustable difficulty levels. It provides tools to assist players, from beginners to advanced, and allows users to input puzzles from external sources. Enjoy daily challenges and track your progress.

Six difficulty levelsInput puzzles from newspapersAdvanced solving hints
🎮 Games
(599)
free with in-app purchases
6
Sudoku
Sudoku
Sudoku
by Mighty Mighty Good Games
$2.99

Engage in a classic logic puzzle experience with a vast collection of unique challenges. Enjoy multiple difficulty levels, helpful tools, and the ability to track your progress and compete with friends. Solve puzzles anytime, anywhere, with features designed to enhance your gameplay.

1000 unique puzzlesFour skill levelsShow incorrect answers
🎮 Games
(556)
free
7
Sudoku
Sudoku
Sudoku
Award winning Sudoku puzzles!
Free

Engage in a classic logic puzzle game designed for iPhone and iPad. The app offers a beautiful and user-friendly interface to solve Sudoku puzzles, challenging your mind with number placement.

Classic Sudoku puzzlesDesigned for iPhone and iPadSimple and beautiful interface
🎮 Games
(2.5K)
free with in-app purchases
8
Sudoku : World's Biggest Number Logic Puzzle
Sudoku : World's Biggest Number Logic Puzzle
Sudoku : World's Biggest Number Logic Puzzle
by AppyNation Ltd
Free

This app offers a massive collection of over 350 hand-crafted Sudoku puzzles across multiple difficulty levels. Engage in quests, collect trophies, and unlock achievements while utilizing helpful tools like pencil marks and hints. Customize your experience with various background themes.

Over 350 hand-crafted Sudoku puzzlesMultiple difficulty levels (Easy to Super-Hard)Quest and trophy collection system
🎮 Games
(3.3K)
free with in-app purchases
9
Sudoku by Logify
Sudoku by Logify
Sudoku by Logify
Write in the numbers!
Free

Experience classic Sudoku with an intuitive, paper-like interface. Solve unlimited puzzles across four difficulty levels using logical reasoning and helpful hints. Customize your game with various design options and track your progress with detailed statistics.

Number entry by drawingAdvanced hint systemUnlimited puzzles
🎮 Games
(1.3K)
free with in-app purchases
10
Killer Sudoku!
Killer Sudoku!
Killer Sudoku!
Logic puzzles for your brain
Free

This app offers a digital version of Killer Sudoku, a logic puzzle that combines traditional Sudoku rules with region sum constraints. It features an intuitive interface with specialized tools for note-taking and puzzle solving, designed to be superior to paper-based play.

Dual keypads for notes and answersMulti-square note entryRearrangeable combination lists
🎮 Games
(1.9K)
free with in-app purchases
11
Sudoku by Joseph
Sudoku by Joseph
Sudoku by Joseph
Jigsaw Killer Samurai Puzzles
Free

This app offers a comprehensive Sudoku experience with 12 unique puzzle variants, including classic, jigsaw, and killer modes. Enjoy daily challenges, customizable themes, and detailed statistics. Start with free variants and unlock all puzzles with a premium subscription.

12 unique Sudoku variantsClassic, Jigsaw, and Killer SudokuDaily Challenge puzzles
🎮 Games
(2.4K)
freemium
12
Sudoku·
Sudoku·
Sudoku·
High Quality Sudoku Cards
Free

Engage your mind with a classic Sudoku puzzle game. Enjoy a clean interface and multiple difficulty levels. Track your progress and compete with others.

Daily ChallengeMultiple difficulty levelsNote taking
🎮 Games
(17K)
ad-supported
13
•sudoku
•sudoku
•sudoku
by Sarah Pierce
Free

Enjoy a vibrant and engaging sudoku experience with over a million free puzzles. This app offers customizable gameplay options, including different themes, note-taking methods, and the choice to play with or without a timer. Track your progress and compete with others in a visually appealing and challenging environment.

1 million free puzzlesThree puzzle themesCustomizable note entry
🎮 Games
(1K)
free with in-app purchases
14
Wood Block 99 - Sudoku Puzzle
Wood Block 99 - Sudoku Puzzle
Wood Block 99 - Sudoku Puzzle
Fun fill cube blast IQ game!
Free

This wood-style puzzle game combines Sudoku and block-filling mechanics. Strategically place blocks to clear lines and squares, aiming for combos and daily challenges. It offers a relaxing, offline experience to improve spatial skills and relieve stress.

Wood-style block puzzleSudoku and block-filling mashupTemporary block storage grid
🎮 Games
(4.1K)
free with in-app purchases
15
Pure Sudoku: The Logic Game
Pure Sudoku: The Logic Game
Pure Sudoku: The Logic Game
Simple, beautiful & intuitive
Free

Experience high-quality Sudoku puzzles with intuitive design and beautiful visuals. Offers six difficulty levels to challenge both beginners and experts. Enjoy a seamless and engaging logic game experience.

High-quality Sudoku puzzlesSix difficulty levelsBeautiful and intuitive design
🎮 Games
(1.2K)
free with in-app purchases
16
Sudoku Deluxe® Social
Sudoku Deluxe® Social
Sudoku Deluxe® Social
Classic Soduko and Great Tools
Free

This app offers a premium Sudoku experience with thousands of puzzles across numerous books. It includes advanced tools, tutorials, and social features like team tournaments and playing with friends. Customize your game with unique themes and enjoy HD graphics.

Thousands of Sudoku puzzlesAdvanced auto-pencil marksBranching tools
🎮 Games
(736)
free with in-app purchases
17
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

A block puzzle game where you merge hexagonal blocks to create higher numbers and clear the board. Strategically drag and combine groups of three or more identical blocks to achieve higher levels and remove them.

Hexagon block mergingUpgrade blocks to higher numbersClear blocks by matching three or more
🎮 Games
(271)
free with in-app purchases
18
Sudoku - Puzzle Adventure
Sudoku - Puzzle Adventure
Sudoku - Puzzle Adventure
by 晶 闫
Free

Engage your mind with a classic number puzzle game offering thousands of challenges. Progress through difficulty levels, from beginner to expert, to enhance your logic and concentration. Play offline with helpful hints and track your achievements.

Thousands of Sudoku puzzlesVarying difficulty levelsOffline play
🎮 Games
(246)
ad-supported
19
Expert Sudoku Book Stress Free
Expert Sudoku Book Stress Free
Expert Sudoku Book Stress Free
Samurai Hyper Jigsaw Cross X
Free

This app offers a vast collection of over 160,000 Sudoku puzzles across four difficulty levels and four unique variations: X Sudoku, Hyper Sudoku, Jigsaw Sudoku, and Samurai Sudoku. Enjoy a relaxing, timer-free experience with helpful features like undo, pencil marks, and auto-highlighting.

160,000+ Sudoku puzzlesFour difficulty levelsX Sudoku
🎮 Games
(1.6K)
free with in-app purchases
20
Sudoku Packs
Sudoku Packs
Sudoku Packs
Classic Puzzle w/ Arcade Touch
Free

Engage in a classic Sudoku experience with a modern twist. Explore multiple difficulty levels and themed puzzle packs. Offers helpful tools and competitive leaderboards for an enhanced puzzle-solving journey.

Progressive difficulty packsClassic 9x9 grids9 puzzle themes
🎮 Games
(113)
ad-supported

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