Best Online Sudoku Apps & Games

249+ iOS apps & games curated and reviewed

4.7 avg rating
20 free apps & games
Updated October 2026

If you already know Sudoku Duel, this is the deeper bench. 249+ online sudoku apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Online Sudoku Apps & Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sudoku Duel: Online SudokuSudoku Duel: Online SudokuFree5.0★ (1)NoNoJul 2026
2Sudoku Multiplayer ChallengeSudoku Multiplayer ChallengeFree4.4★ (142)YesYesOct 2026
3▻Sudoku - Classic Brain Game▻Sudoku - Classic Brain GameFree4.8★ (664K)YesYesNov 2026
4⋆Sudoku⋆SudokuFree4.7★ (161K)YesYesNov 2026
5Sudoku ▦Sudoku ▦Free4.7★ (104K)YesNoNov 2026
6Sudoku ′Sudoku ′Free4.7★ (39K)YesYesNov 2026
7Sudoku :)Sudoku :)Free4.7★ (59K)YesYesNov 2026
8Sudoku by Staple GamesSudoku by Staple GamesFree4.8★ (105K)YesNoNov 2026

Top Picks for Online Sudoku

5.0(1 ratings)
Free
Sudoku Duel: Online Sudoku screenshot 1
Sudoku Duel: Online Sudoku screenshot 2
Sudoku Duel: Online Sudoku screenshot 3

Engage in real-time, head-to-head Sudoku battles against friends or other players. This competitive puzzle game emphasizes speed and accuracy, offering both multiplayer challenges and a solo practice mode.

Sudoku Multiplayer Challenge#2

Sudoku Multiplayer Challenge by Hive 5 Studio DOO

Play with Friends Easy Classic
Strong Contender
🎮 Games
4.4😐(142 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.

What We Love

  • 👍 Fun and engaging gameplay
  • 🚀 Fast matchmaking
  • 🧑‍🤝‍🧑 Great for playing with friends
  • 🧠 Stimulates logical thinking
  • ✨ Smooth graphics and interface
  • 🏆 Exciting duel mode
  • 🌍 Crossplay between platforms
  • 💯 Excellent Sudoku experience

Room to Improve

  • 広告 Excessive and long ads
  • 🎟️ Difficulty earning tickets/rewards
  • 💰 Paywall for continued play
  • 🚫 Ads not working or appearing after payment
  • ⏳ Long ad durations
  • 🤖 Many players are bots
  • 📉 Poor user experience after updates
  • 💸 Overpriced in-app purchases
▻Sudoku - Classic Brain Game#3

▻Sudoku - Classic Brain Game by PeopleFun CG, LLC

Logic puzzles & Mind games
Worth Considering
🎮 Games
4.8😊(664K 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 Duel: Online Sudoku tops our online sudoku apps & games ranking as of October 2026, with a 5.0-star average from 1 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 Duel: Online Sudoku and Sudoku Multiplayer Challenge.
Sudoku Duel: Online Sudoku has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 249+ online sudoku apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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