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Best Extreme Sudoku Apps & Games

250+ iOS apps & games curated and reviewed

4.4 avg rating
20 free apps & games
Updated October 2026

Every iPhone needs a few good extreme sudoku apps and games. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Extreme Sudoku Apps & Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sudoku Extreme: Easy Hard MathSudoku Extreme: Easy Hard MathFree4.5★ (827)NoYesOct 2026
2Extreme Difficult Sudoku 2500Extreme Difficult Sudoku 2500Free4.5★ (110)YesNoOct 2026
3MultiSudoku: Samurai SudokuMultiSudoku: Samurai SudokuFree4.8★ (2.4K)NoYesNov 2026
4Killer Sudoku by Sudoku.comKiller Sudoku by Sudoku.comFree4.7★ (218K)YesYesNov 2026
5Sudoku World - Brainstorming!!Sudoku World - Brainstorming!!Free4.7★ (1.5K)YesYesOct 2026
6Sudoku ▦Sudoku ▦Free4.7★ (104K)YesNoNov 2026
7Sudoku Number Puzzle ChallengeSudoku Number Puzzle ChallengeFree3.0★ (1)YesYesOct 2026
8Sudoku - world famous brain puzzle!Sudoku - world famous brain puzzle!Free—YesYesMay 2026

Top Picks for Extreme Sudoku

Sudoku Extreme: Easy Hard Math#1

Sudoku Extreme: Easy Hard Math by Pranoy Chowdhury

Classic Number Puzzle Killer
Editor's Choice
🎮 Games
4.5😊(827 ratings)
FreeIn-App Purchases
Sudoku Extreme: Easy Hard Math screenshot 1
Sudoku Extreme: Easy Hard Math screenshot 2
Sudoku Extreme: Easy Hard Math screenshot 3
Sudoku Extreme: Easy Hard Math screenshot 4
Sudoku Extreme: Easy Hard Math screenshot 5
Sudoku Extreme: Easy Hard Math screenshot 6

Engage your mind with classic Sudoku puzzles designed for all skill levels. Enjoy a customizable, ad-free experience with various themes and difficulty settings. Track your progress and stats while sharpening your logic skills.

What We Love

  • 🚀 Smooth gameplay
  • 👍 Customizable themes
  • 🔒 No data tracking
  • 💡 Detailed statistics and graphs
  • 👍 Intuitive user interface
  • 🚀 Responsive and fast
  • 👍 Comprehensive features

Room to Improve

  • 🐛 Difficulty levels not properly calibrated
  • 🐛 Accidental number input issues
  • 💰 Paywall for basic settings
  • 🐛 Inconsistent difficulty across puzzles
Extreme Difficult Sudoku 2500#2

Extreme Difficult Sudoku 2500 by Ohte, Inc.

Heat Your Brain!
Strong Contender
🎮 Games
4.5(110 ratings)
FreeAds
Extreme Difficult Sudoku 2500 screenshot 1
Extreme Difficult Sudoku 2500 screenshot 2
Extreme Difficult Sudoku 2500 screenshot 3
Extreme Difficult Sudoku 2500 screenshot 4
Extreme Difficult Sudoku 2500 screenshot 5

This game offers a vast collection of challenging Sudoku puzzles across five distinct categories. With 2500 puzzles in total, it's designed to test and enhance your logical thinking skills. It's completely free to play and aims to help you become a Sudoku genius.

MultiSudoku: Samurai Sudoku#3

MultiSudoku: Samurai Sudoku by Conceptis Ltd.

No ads. More fun.
Worth Considering
🎮 Games
4.8😊(2.4K ratings)
FreeIn-App Purchases
MultiSudoku: Samurai Sudoku screenshot 1
MultiSudoku: Samurai Sudoku screenshot 2
MultiSudoku: Samurai Sudoku screenshot 3
MultiSudoku: Samurai Sudoku screenshot 4
MultiSudoku: Samurai Sudoku screenshot 5

This app offers a variety of challenging Sudoku puzzles with different overlapping grid configurations. It provides a no-ads gaming experience with features to help track progress and sharpen logic skills. Enjoy hours of intellectual challenge with continuously updating content.

What We Love

  • 💡 Challenging and engaging puzzles
  • 👍 Intuitive and user-friendly interface
  • 🚀 No ads or interruptions
  • 🚀 Weekly free puzzle updates
  • 👍 Separate number pads for notes and final entries
  • 👍 Ability to check for errors and restart puzzles

Room to Improve

  • 💰 Expensive in-app purchases for additional puzzles
  • 🔍 Small text size on larger puzzles
  • 🔍 Lack of a dark mode option

More Extreme Sudoku apps to explore

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FAQ about Extreme Sudoku

What are the best extreme sudoku apps & games for iPhone?
Sudoku Extreme: Easy Hard Math tops our extreme sudoku apps & games ranking as of October 2026, with a 4.5-star average from 827 App Store ratings, and it's free to download.
Yes — 20 of the top extreme sudoku apps & games we rank are free to download, including Sudoku Extreme: Easy Hard Math and Extreme Difficult Sudoku 2500.
Sudoku Extreme: Easy Hard Math has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ extreme sudoku apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.