Best Killer Sudoku Apps & Games

250+ iOS apps & games curated and reviewed

4.9 avg rating
20 free apps & games
Updated September 2026

From beginner-friendly picks to power-user tools, our killer sudoku list covers 250+ iPhone apps and games updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Killer Sudoku Apps & Games (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Killer Sudoku by Sudoku.comKiller Sudoku by Sudoku.comFree4.7★ (217K)YesYesSep 2026
2Killer Sudoku - Brain GamesKiller Sudoku - Brain GamesFree4.7★ (27K)YesYesSep 2026
3Killer Sudoku!Killer Sudoku!Free4.8★ (2K)NoYesSep 2026
4Killer Sudoku - Puzzle GamesKiller Sudoku - Puzzle GamesFree4.8★ (6.2K)YesYesSep 2026
5Killer Sudoku - Puzzle GameKiller Sudoku - Puzzle GameFree4.9★ (1.2K)YesNoSep 2026
6Killer Sudoku - No AdsKiller Sudoku - No AdsFree5.0★ (1)NoYesSep 2026
7Free SudokuFree SudokuFree—NoYesSep 2026
8SumSudoku: Killer SudokuSumSudoku: Killer SudokuFree4.8★ (801)NoYesSep 2026

Top Picks for Killer Sudoku

Killer Sudoku by Sudoku.com#1

Killer Sudoku by Sudoku.com by Easybrain Ltd

Math crossword & number puzzle
Editor's Choice
🎮 Games
4.7😐(217K ratings)
FreeAdsIn-App Purchases
Killer Sudoku by Sudoku.com screenshot 1
Killer Sudoku by Sudoku.com screenshot 2
Killer Sudoku by Sudoku.com screenshot 3
Killer Sudoku by Sudoku.com screenshot 4
Killer Sudoku by Sudoku.com screenshot 5
Killer Sudoku by Sudoku.com screenshot 6

Engage in a challenging math crossword and number puzzle experience. Solve thousands of Killer Sudoku puzzles with enhanced gameplay, daily challenges, and seasonal events. Train your brain and become a sudoku master with helpful hints and notes.

What We Love

  • 👍 Challenging game
  • 🚀 Great time-filler
  • 💡 Unique take on Sudoku
  • 👍 Enjoyable experience
  • 👍 Solid game play

Room to Improve

  • 🔍 Too many ads
  • 🔍 Ads interrupt gameplay
  • 🐛 Bugs and glitches
  • 🔍 Excessive ads for free version
  • 🔍 Ads disrupt concentration
  • 🔍 Ads too frequent
Killer Sudoku - Brain Games#2

Killer Sudoku - Brain Games by Oakever Games

Board puzzles for mindfulness
Strong Contender
🎮 Games
4.7😞(27K ratings)
FreeAdsIn-App Purchases
Killer Sudoku - Brain Games screenshot 1
Killer Sudoku - Brain Games screenshot 2
Killer Sudoku - Brain Games screenshot 3
Killer Sudoku - Brain Games screenshot 4
Killer Sudoku - Brain Games screenshot 5
Killer Sudoku - Brain Games screenshot 6

Engage your mind with a logic-based number puzzle game. Place digits 1-9 into grids, ensuring each appears once per row, column, and mini-grid. Enjoy daily challenges, customizable themes, and intelligent hints for a brain-boosting experience.

What We Love

  • 🚀 Great game
  • 💡 Challenging and makes you think
  • 👍 Variety and challenge
  • 👍 Stimulating brain workout

Room to Improve

  • 🐛 Freezing and crashing issues
  • 🔋 Battery drain
  • 💸 Too many intrusive ads
  • 💸 Expensive subscription to remove ads
  • 🐛 Bugs and glitches
  • 🐛 Losing progress and data
Killer Sudoku!#3

Killer Sudoku! by Sarah Pierce

Logic puzzles for your brain
Worth Considering
🎮 Games
4.8😊(2K ratings)
FreeIn-App Purchases
Killer Sudoku! screenshot 1
Killer Sudoku! screenshot 2
Killer Sudoku! screenshot 3
Killer Sudoku! screenshot 4
Killer Sudoku! screenshot 5
Killer Sudoku! screenshot 6

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.

What We Love

  • 👍 Excellent user interface
  • 🚀 Smooth gameplay
  • 💡 Helpful tools (calculator, combo lists)
  • 🔒 No ads or in-app purchases
  • 👍 Intuitive controls (separate keypads)

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 🔍 Limited free puzzles
  • 💰 Paid puzzle packs can be expensive

More Killer Sudoku apps to explore

FAQ about Killer Sudoku

What are the best killer sudoku apps & games for iPhone?
Killer Sudoku by Sudoku.com tops our killer sudoku apps & games ranking as of September 2026, with a 4.7-star average from 217K App Store ratings, and it's free to download.
Yes — 20 of the top killer sudoku apps & games we rank are free to download, including Killer Sudoku by Sudoku.com and Killer Sudoku - Brain Games.
Killer Sudoku by Sudoku.com shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ killer sudoku apps & games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Killer Sudoku is a math crossword and number puzzle that combines elements of classic Sudoku with additional cage sum rules. Players must fill rows, columns, and 3x3 regions with numbers, ensuring each cell is part of a cage whose numbers add up to a specified sum. Numbers cannot repeat within cages, rows, columns, or 3x3 regions.
Fill all rows, columns, and 3x3 regions with numbers 1-9, just like classic Sudoku. Additionally, each cell belongs to a cage indicated by dotted lines. The numbers within each cage must add up to the sum shown in the upper left corner of the cage. Numbers cannot repeat within cages, rows, columns, or 3x3 regions.

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