# Digit Matrix vs Cross Sum

The clearest difference is update cadence: Digit Matrix at every 3 weeks against Cross Sum's every 4 months. Digit Matrix also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Digit Matrix sells 6 one-off in-app purchases and Cross Sum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Digit Matrix ships an update every 3 weeks, Cross Sum every 4 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Digit Matrix | Cross Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/digit-matrix-math-puzzles/id1450134270/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 11 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [振华 许](https://appshunter.io/developer/1437340417) | [宏斌 樊](https://appshunter.io/developer/1452129040) |

## What reviewers say

### Digit Matrix

[App page](https://appshunter.io/ios/app/digit-matrix-math-puzzles/id1450134270)

Engage in a variety of mathematical puzzles designed to enhance calculation skills and logical reasoning. Explore numerous challenges from simple to complex, cultivating a stronger mathematical mindset.

**Highlights:** Calculation and logical reasoning training, Fifteen types of puzzles, Infinite exercises, Multiple difficulty levels, Five visual themes, Covers arithmetic, sums, products, and more

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cross Computing | $0.99 | one-time |
| Matches | $0.99 | one-time |
| Addition | $0.99 | one-time |
| Blank Cell | $0.99 | one-time |
| Digit Twins, Divisor&Multiple | $0.99 | one-time |
| All Contents | $3.99 | one-time |


### Cross Sum

[App page](https://appshunter.io/ios/app/cross-sum-number-puzzle/id1514735753)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告插件 | $3.99 | one-time |


## Frequently asked questions

### Is Digit Matrix free?

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

### Is Cross Sum free?

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

### Do Digit Matrix or Cross Sum have ads?

Both Digit Matrix and Cross Sum show ads.

### Which is updated more often, Digit Matrix or Cross Sum?

Digit Matrix ships an update every 3 weeks, and Cross Sum every 4 months. Most recently, Digit Matrix was updated on November 2, 2026 and Cross Sum on November 7, 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.*