Best Online Sudoku Apps & Games

250+ iOS apps & games curated and reviewed

4.7 avg rating
20 free apps & games
Updated September 2026

If you already know Sudoku Multiplayer Challenge, this is the deeper bench. 250+ online sudoku apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Online Sudoku Apps & Games (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sudoku Multiplayer ChallengeSudoku Multiplayer ChallengeFree4.4★ (129)YesYesSep 2026
2Sudoku Duel: Online SudokuSudoku Duel: Online SudokuFree5.0★ (1)NoNoJul 2026
3▻Sudoku - Classic Brain Game▻Sudoku - Classic Brain GameFree4.8★ (661K)YesYesSep 2026
4Sudoku.com - Number GamesSudoku.com - Number GamesFree4.8★ (1.8M)YesYesSep 2026
5⋆Sudoku⋆SudokuFree4.7★ (161K)YesYesSep 2026
6Sudoku ′Sudoku ′Free4.7★ (38K)YesYesSep 2026
7Sudoku :)Sudoku :)Free4.7★ (59K)YesYesSep 2026
8Sudoku ▦Sudoku ▦Free4.7★ (104K)YesNoSep 2026

Top Picks for Online Sudoku

Sudoku Multiplayer Challenge#1

Sudoku Multiplayer Challenge by Hive 5 Studio DOO

Play with Friends Easy Classic
Editor's Choice
🎮 Games
4.4(129 ratings)
FreeAdsIn-App Purchases
Sudoku Multiplayer Challenge screenshot 1
Sudoku Multiplayer Challenge screenshot 2
Sudoku Multiplayer Challenge screenshot 3
Sudoku Multiplayer Challenge screenshot 4
Sudoku Multiplayer Challenge screenshot 5
Sudoku Multiplayer Challenge screenshot 6

Test your Sudoku skills against other players online or practice in single-player mode. Unlock harder levels, earn rewards, and utilize special modes like Notes and Turbo to enhance your gameplay. Daily challenges offer opportunities to earn medals and improve your strategy.

▻Sudoku - Classic Brain Game#3

▻Sudoku - Classic Brain Game by PeopleFun CG, LLC

Logic puzzles & Mind games
Worth Considering
🎮 Games
4.8😊(661K ratings)
FreeAdsIn-App Purchases
▻Sudoku - Classic Brain Game screenshot 1
▻Sudoku - Classic Brain Game screenshot 2
▻Sudoku - Classic Brain Game screenshot 3
▻Sudoku - Classic Brain Game screenshot 4
▻Sudoku - Classic Brain Game screenshot 5
▻Sudoku - Classic Brain Game screenshot 6

Experience Sudoku with a unique point system, track your progress with runs, and compete globally on leaderboards. Enjoy thousands of free puzzles with adjustable difficulty and customizable looks.

What We Love

  • 👍 Enjoyable game
  • 🚀 Challenging levels
  • 📊 Tracks progress and scores
  • 💡 Highlighting and note-taking features
  • 🧠 Keeps the mind active

Room to Improve

  • 🔍 Inconsistent scoring system
  • 🔧 Overlapping buttons/controls
  • 🔊 Annoying audio effects
  • 📽️ Intrusive and repetitive ads
  • 🐛 Occasional bugs and glitches

More Online Sudoku apps to explore

FAQ about Online Sudoku

What are the best online sudoku apps & games for iPhone?
Sudoku Multiplayer Challenge tops our online sudoku apps & games ranking as of September 2026, with a 4.4-star average from 129 App Store ratings, and it's free to download.
Yes — 20 of the top online sudoku apps & games we rank are free to download, including Sudoku Multiplayer Challenge and Sudoku Duel: Online Sudoku.
Sudoku Multiplayer Challenge shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ online sudoku apps & games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Sudoku Multiplayer Challenge is a mobile game that allows you to play Sudoku against other players online or practice your skills in a single-player mode. It offers various features to enhance the gameplay experience and challenge players of all levels.
Key features include playing against friends and other players online, a single-player mode for practice, challenging advancement to harder levels, and special modes like 'Notes' for strategic input and 'Turbo' for faster number entry. There are also daily challenges to earn medals.

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