# KenKen Classic

> Addictive logic and math puzzle game for brain training. (iPhone/iPad app by KenKen Puzzle.)

- Source: https://appshunter.io/ios/app/kenken-classic/id485694706 (this page in markdown: same URL + `.md`)
- Developer: [KenKen Puzzle](https://appshunter.io/developer/485694769)
- Category: Games, Education, Puzzle
- Price: Free with in-app purchases
- Rating: 4.60/5 from 3,172 App Store ratings · 308 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.1 · 40 MB
- Languages: American English
- Released: 2012-02-29
- Data updated: 2026-09-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/kenken-classic/id485694706/reviews.md

## What is KenKen Classic?

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

## Key features

- Unlimited puzzles
- Adjustable difficulty and grid size
- Multiple input modes
- Hints, Undo, Redo, Reset
- Online leaderboards
- Color schemes and music options

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Full Year Subscription NO ADS! | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 500 KenKen toKENs | $0.99 | one-time |
| 31 Puzzles PLUS removal of all ads! | $1.99 | one-time |
| 250 Puzzles PLUS removal of all ads! | $7.99 | one-time |
| 1000 Puzzles PLUS removal of all ads! | $14.99 | one-time |
| Annual Unlimited Subscription - Ad Free | $19.99 | one-time |


## What do users think of KenKen Classic?

Overall sentiment: positive

**Pros**

- 👍 Fun and challenging puzzles
- 🧠 Helps improve math and logic skills
- ⭐ Great variety of puzzle sizes and difficulties
- 🏆 Satisfying to solve puzzles
- 💻 Clean and intuitive user interface

**Cons**

- 🔒 Limited number of free puzzles
- 💰 Expensive in-app purchases for more puzzles
- 🐛 Buggy undo/redo functionality
- 🔀 Cursor/selection issues when switching between note-taking and number entry
- 📢 Intrusive ads

**Commonly reported bugs**

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

**Most requested features**

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

## Recent user reviews (10 of 308)

All indexed reviews: https://appshunter.io/ios/app/kenken-classic/id485694706/reviews.md

### 5/5 — Thank you

*2026-08-09*

Love this I won many championships because of this game

### 1/5 — Too many ads

*2026-07-19, version 3.87*

I like the game, but play two games and you’re stuck in an ad you can’t get out of.

### 3/5 — Great game in need of improvements

*2026-07-10, version 3.87*

I’ve played literally 1000s of these so clearly I like it. But there are a couple simple issues that I can’t believe have never been addressed. 1) user is required to scroll through hundreds of options each time to get to hard or expert levels. Should be an easy (and obvious) fix with a filter. 2) you will eventually run out of games and the solution is to uninstall the game, re-install, then restore purchases. Come on devs. It’s 2026. Fix this.

### 3/5 — Not good for airplane trips

*2026-06-29*

Paying for puzzles doesn't actually download all the puzzles you bought. Instead, the model is that once a puzzle is completed, another of the same type is "automatically downloaded" (their terminology) to the device, to replace the completed one. This means this app is completely unsuitable for extended offline use, such as on a long airplane trip without WiFi... which is unfortunately exactly why I bought puzzles. Also (less critical): the app does not recognize a keyboard (such as on an iPad), and requires tapping the screen to select numbers even when there's a keyboard available.

### 5/5 — Seems perfect

*2026-06-28, version 3.87*

Exactly what I want in a Ken Ken app. I cannot imagine how it could be improved. I use the paid version. Well worth the upgrade price.

### 5/5 — KenKen forever

*2026-04-16, version 3.87*

Sudoku is for babies

### 5/5 — Absolutely amazing.

*2026-03-26, version 3.87*

Easy to understand, infinite puzzles, and extremely satisfying for the brain. Would most definitely recommend. Coming from a non-brainy teen, this game is so fun.

### 3/5 — Could be better

*2026-02-17, version 3.87*

I enjoy the mental exercise, but get frustrated by glitches in the app. I always play 6x6 medium or hard. Why can’t it learn that? Why are there SO SO MANY easy games?  I run out of games, despite having bought more. To get more, I have to delete and then reload the app. I lose my personal best times. Very irritating. It’s also too easy to swipe the screen left or right when entering numbers in a hurry. Can’t that be optionally locked?  
Room for improvement, chaps!

### 1/5 — Fun but flawed

*2026-02-12, version 3.87*

Don’t bother downloading this. You only get 50 puzzles free and after that it will not let you even enter the app until you pay $25. This is why I play on the website, with an adblocker. I don’t want to support your trashy app or website, I just want to play a sudoku ripoff. Is that too much to ask?!

### 1/5 — Extracts money forever

*2026-02-08, version 3.87*

You pay by the puzzle, so you have to constantly pay them for more puzzles. This constant extraction of money is not really OK. There is no way to buy a “lifetime” supply of puzzles.

## Frequently asked questions about KenKen Classic

### What is KenKen Classic?

KenKen Classic is a brain training puzzle game that combines logic and math. It is known for being an addictive and fun challenge, often described as a more complex version of Sudoku. The app provides a virtually unlimited supply of puzzles for users to enjoy and improve their cognitive skills.

### How many puzzles are included for free?

The app includes 50 free math puzzles of various sizes and difficulty levels upon download. Additionally, there are unlimited free 3x3 size puzzles available for learning and enjoyment. More puzzles can be purchased if you wish to expand your options beyond the free content.

### What are the different difficulty levels and grid sizes available?

You can select the size and difficulty level of the puzzles to suit your preference. Puzzles range from 3x3 grids up to 9x9 grids, with difficulty levels spanning from Easy to Expert. This allows for a tailored experience whether you are a beginner or an advanced player.

### What features help with gameplay?

The app offers several helpful features to enhance gameplay, including Hints to guide you, Check to verify your answers, Undo and Redo functions for corrections, a Reset option to start over, a Pause feature to take breaks, and a Timer to track your progress. There are also three different input modes for digits and notes.

### Is this app available on other platforms?

The description specifically refers to this as the 'ONE-AND-ONLY Original KenKen app' created by Tetsuya Miyamoto. While it is widely published in various forms, this description focuses on the features and availability of this particular mobile application, implying it is designed for mobile devices.

## Version history (last 5 releases)

### 3.87 — 2023-12-03

We've just made some behind-the-scenes improvements to enhance your privacy and security. Rest assured, your data is in safe hands. To continue enjoying our app hassle-free, simply update to the latest version. Thanks for being a part of our community!

### 3.86 — 2023-05-24

Improved stability.

### 3.84 — 2023-01-30

Improved support system.

### 3.81 — 2022-04-06

Updated for faster and smoother playing experience.

### 3.5 — 2021-10-27

Updating, tweaking and improving for a better, smoother puzzle experience.

## Apps similar to KenKen Classic

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| --- | --- | --- | --- |
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## More apps by KenKen Puzzle

- [KenKen 2026 Daily Logic Puzzle](https://appshunter.io/ios/app/kenken-2026-daily-logic-puzzle/id6444286097)

All apps by KenKen Puzzle: https://appshunter.io/developer/485694769

## Related topics

[math cage kenken offline2026](https://appshunter.io/ios/topics/math-cage-kenken-offline2026)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*