# Math the Cross Math Puzzle vs Entropy

The clearest difference is ads: Entropy at none against Math the Cross Math Puzzle's shown. Entropy also leads on update cadence (every 2 weeks vs every 3 months). Math the Cross Math Puzzle's advantage is iOS requirement (13.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Math the Cross Math Puzzle sells 1 one-off in-app purchase and Entropy sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Math the Cross Math Puzzle ships an update every 3 months, Entropy every 2 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Math the Cross Math Puzzle | Entropy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (302 ratings)](https://appshunter.io/ios/app/math-the-cross-math-puzzle/id1503018793/reviews)** | — |
| Number of ratings | **302** | — |
| Positive reviews | 86.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 6 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kittisak wongkantarakorn](https://appshunter.io/developer/1118835682) | [Erdener Uyan](https://appshunter.io/developer/1843571074) |

## What reviewers say

### Math the Cross Math Puzzle

[App page](https://appshunter.io/ios/app/math-the-cross-math-puzzle/id1503018793)

Engage your mind with a dynamic math puzzle game featuring customizable operators and difficulty levels. Enjoy endless replayability with random puzzles, share your creations, and test your skills in arcade or import modes.

**Highlights:** Randomly generated puzzles, Addition, subtraction, multiplication, division, Adjustable difficulty levels, Share puzzles on social media, Arcade mode with scoring, Import and play custom puzzles

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Free | $1.99 | one-time |

**What reviewers like**

- 🧠 Excellent for mental math practice and brain stimulation
- 👍 Fun and engaging gameplay across all age groups
- 📚 Educational value for children learning math
- ⏱️ Great for quick mental exercises and keeping mind sharp
- 🎮 Addictive and non-boring puzzle mechanics

**What reviewers complain about**

- 📺 Excessive ads throughout gameplay
- ⏳ Long ad wait times between puzzles
- 😤 Ads interrupt game flow and user experience
- 💰 No ad-free premium version available
- 🔄 Difficult to switch user preferences between players

**Reported bugs**

- Unable to progress to next board
- Requires complete app restart to switch user preferences

**Requested features**

- Ad-free premium version option
- Ability to view incorrect answers after completion
- Easier preference switching for multiple users
- In-game hints or help system
- Age-specific difficulty customization


### Entropy

[App page](https://appshunter.io/ios/app/entropy-zero/id6757635585)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Emergency Kit | $0.99 | one-time |
| Hacker Bundle | $2.99 | one-time |
| Developer Access | $4.99 | one-time |
| Survival Mode | $9.99 | one-time |


## Frequently asked questions

### Is Math the Cross Math Puzzle free?

Math the Cross Math Puzzle is free to download, with in-app purchases available.

### Is Entropy free?

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

### Do Math the Cross Math Puzzle or Entropy have ads?

Math the Cross Math Puzzle shows ads; Entropy does not.

### Which is updated more often, Math the Cross Math Puzzle or Entropy?

Math the Cross Math Puzzle ships an update every 3 months, and Entropy every 2 weeks. Most recently, Math the Cross Math Puzzle was updated on September 22, 2026 and Entropy on September 17, 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.*