# KenKen Classic vs Mathdoku Challenge!

The clearest difference is update cadence: Mathdoku Challenge! at every 8 days against KenKen Classic's every 4 months. Mathdoku Challenge! also leads on review sentiment (100% vs 73%) and rating (5.0 vs 4.6). KenKen Classic's advantage is ratings volume (3.2K vs 15) and iOS requirement (12.1 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. KenKen Classic sells 6 in-app purchases, starting at $19.99 per year and Mathdoku Challenge! sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Mathdoku Challenge! 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 15, 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 Mathdoku Challenge!'s.

KenKen Classic ships an update every 4 months, Mathdoku Challenge! every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | KenKen Classic | Mathdoku Challenge! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (3.2K ratings)](https://appshunter.io/ios/app/kenken-classic/id485694706/reviews) | **[5.0 (15 ratings)](https://appshunter.io/ios/app/mathdoku-challenge/id1240671305/reviews)** |
| Number of ratings | **3.2K** | 15 |
| Positive reviews | 72.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 40 MB | 39 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KenKen Puzzle](https://appshunter.io/developer/485694769) | [Taylor Geisse](https://appshunter.io/developer/1240671304) |

## What reviewers say

### KenKen Classic

[App page](https://appshunter.io/ios/app/kenken-classic/id485694706)

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:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Year Subscription NO ADS! | $19.99 | per year |
| 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 reviewers like**

- 👍 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

**What reviewers complain about**

- 🔒 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

**Reported bugs**

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

**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


### Mathdoku Challenge!

[App page](https://appshunter.io/ios/app/mathdoku-challenge/id1240671305)

This game combines Sudoku logic with mathematical operations. Solve puzzles by filling cells with numbers that satisfy row, column, and cage constraints. Offers daily puzzles and purchasable packs to challenge your mind.

**Highlights:** Sudoku-style number placement, Mathematical cage operations, Logic-based puzzle solving, Daily new puzzles, Purchasable puzzle packs, Varying puzzle sizes

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Puzzles | $0.99 | one-time |
| 250 Puzzles | $1.99 | one-time |
| 500 Puzzles | $3.99 | one-time |
| 1000 Puzzles | $6.99 | one-time |


## Frequently asked questions

### Is KenKen Classic free?

KenKen Classic is free to download, with in-app purchases available.

### Is Mathdoku Challenge! free?

Mathdoku Challenge! is free to download, with in-app purchases available.

### Which has better reviews, KenKen Classic or Mathdoku Challenge!?

Mathdoku Challenge! is rated higher. KenKen Classic averages 4.6 out of 5 from 3.2K ratings, while Mathdoku Challenge! averages 5.0 from 15 ratings.

### Do KenKen Classic or Mathdoku Challenge! have ads?

Both KenKen Classic and Mathdoku Challenge! show ads.

### Which is updated more often, KenKen Classic or Mathdoku Challenge!?

KenKen Classic ships an update every 4 months, and Mathdoku Challenge! every 8 days. Most recently, KenKen Classic was updated on October 24, 2026 and Mathdoku Challenge! on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*