Comparison

KenKen Classic vs Quadoku

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

KenKen Classic

Engage your mind with this addictive logic and math puzzle game. It offers a virtually unlimited supply of challenges with adjustable difficulty and grid sizes. Enjoy a fun way to train your brain with a trusted source of daily puzzles.

Highlights
  • Unlimited puzzles
  • Adjustable difficulty and grid size
  • Multiple input modes
  • Hints, Undo, Redo, Reset
  • Online leaderboards
  • Color schemes and music options
Features
Read full description

KenKen® - Brain Training Puzzle Train your brain with KenKen®, the unbelievably fun, exciting and addictive logic and math puzzle! KenKen is an amazing puzzle that is frequently described as “sudoku on steroids.” If you like other brain games such as sudoku, 2048, Threes, Kakuro, Unblock Me, Tricky Test, Tetris, Flow, jigsaw puzzles, word search puzzles, or crossword puzzles, then you will LOVE KenKen! This is the ONE-AND-ONLY Original KenKen app, created by acclaimed Japanese mathematics educator Tetsuya Miyamoto. Don’t be fooled by unauthorized versions such as mathdoku and calcudoku, and don't get stuck in a sudoku rut. Play KenKen math puzzles today! KenKen appears daily in the New York Times and hundreds of other publications around the globe. NY Times puzzle editor, Will Shortz, calls KenKen "the most addictive puzzle since sudoku." There are virtually unlimited KenKen puzzles available to you on this app. The first 50 are included FREE with the download. If you need more...no problem! Just order them and they'll appear immediately. YOU select the size, difficulty level, and operations. KenKen Classic includes: - 50 FREE fun math puzzles of every size and difficulty level - Unlimited FREE 3x3 size puzzles to learn from and enjoy - Virtually unlimited puzzles, ranging from 3x3 to 9x9 grids, from Easy to Expert - A variety of color schemes and music (you can even set your own music to play in the background) - 3 input modes for digits and notes - Great extra features such as Hints, Check, Undo, Redo, Reset, Pause, and Timer - Online leaderboards - Ability to post results directly to Twitter - Ability to email results and invite friends

About

Quadoku

A simple yet addictive block puzzle game where you fill a board with patterns to clear rows, columns, and quadrants for points. Compete for high scores and earn achievements in this endless challenge.

Highlights
  • Endless block puzzle gameplay
  • Score points by clearing rows, columns, and quadrants
  • Earn achievements
  • Compete on leaderboards
  • Automatic game saves
  • Clean, colorful graphics
  • Fun sound effects
Features
Read full description

Quadoku is a simple yet addictive puzzle game. Fill the game board with block patterns attempting to create rows, columns, and quadrants to break the blocks and score points. Score massive points in clearing several sections at once, but be careful to be sure to have space for your patterns or your blocks will burst and it will be game over. Complete as many patterns as you can to earn achievements and compete for the highest score on the Leaderboard! You can download and play this game for free. Play, stop, and resume your game at anytime with automatic saved games. Have a great time with Quadoku! Quadoku features: - Endless fun and challenge - Share your score with your friends & family - Clean, colorful graphics - Rewarding Animations - Fun sound effects - Play at your own pace with automatic game saves This game contains advertising which will redirect you to a third-party site. Visit our official site: https://www.valiantpixelstudios.com/ Terms of Use: https://valiantpixelstudios.com/terms.html Privacy Policy: https://valiantpixelstudios.com/privacy-policy.html

Screenshots

KenKen Classic2 screens
Quadoku4 screens

Verdict

The call

The clearest difference is price: KenKen Classic at Free against Quadoku's $4.99. KenKen Classic also leads on ratings volume (3.2K vs 20). Quadoku's advantage is ads (none vs shown) and update cadence (every 5 days vs every 4 months). On in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

KenKen Classic is free to download; Quadoku costs $4.99 up front. KenKen Classic sells 6 in-app purchases, starting at $19.99 per year and Quadoku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Quadoku holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: KenKen Classic has 3.2K ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 73% of KenKen Classic's written reviews are positive against 100% of Quadoku's.

UpkeepUpdate frequency

KenKen Classic ships an update every 4 months, Quadoku every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard7 real differences · 3 level
KenKen Classic versus Quadoku: the parameters behind the verdict, then further details
ParameterKenKen ClassicQuadoku
PriceFree — better$4.99
Rating4.6 (3.2K ratings)5.0 (20 ratings) — better
Positive reviews72.6% of reviews100.0% of reviews — better
Number of ratings3.2K — better20
Update frequencyEvery 4 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.112.0 — better
Further details — not scored
Size40 MB71 MB
Age rating4+4+
DeveloperKenKen PuzzleValiant Pixel Studios

Customer experience

KenKen Classic

All ratings3,172 ratings
Positive92.7%
Neutral2.6%
Negative4.6%
Written reviews314 reviews
Positive72.6%
Neutral9.6%
Negative17.8%

Quadoku

All ratings20 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

KenKen Classic

Reported bugs

3 issues
  • Puzzles disappearing after device reset or upgrade
  • Purchased puzzles not syncing across devices
  • App crashing or freezing

Requested features

4 requests
  • Dark mode option
  • Ability to save and revert puzzle progress
  • No-op puzzles for advanced players
  • Improved puzzle loading and syncing across devices

Quadoku

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

KenKen Classic

Subscriptions1
  • Full Year Subscription NO ADS!$19.991 Year
One-time5
  • 500 KenKen toKENs$0.99
  • 31 Puzzles PLUS removal of all ads!$1.99
  • 250 Puzzles PLUS removal of all ads!$7.99
Show 2 more
  • 1000 Puzzles PLUS removal of all ads!$14.99
  • Annual Unlimited Subscription - Ad Free$19.99
1 purchases

Quadoku

One-time1
  • Premium$4.99

Questions

Is KenKen Classic free?
KenKen Classic is free to download, with in-app purchases available.
Is Quadoku free?
Quadoku costs $4.99, and also offers in-app purchases.
Which has better reviews, KenKen Classic or Quadoku?
Quadoku is rated higher. KenKen Classic averages 4.6 out of 5 from 3.2K ratings, while Quadoku averages 5.0 from 20 ratings.
Do KenKen Classic or Quadoku have ads?
KenKen Classic shows ads; Quadoku does not.
Which is updated more often, KenKen Classic or Quadoku?
KenKen Classic ships an update every 4 months, and Quadoku every 5 days. Most recently, KenKen Classic was updated on October 24, 2026 and Quadoku on October 25, 2026.

Other comparisons