# Digit Matrix vs 南外方山教师

The clearest difference is in-app purchases: 南外方山教师 at none against Digit Matrix's 6. 南外方山教师 also leads on ads (none vs shown). Digit Matrix's advantage is update cadence (every 3 weeks vs every 2 months). On price, review sentiment, device support and iOS requirement there is nothing between them.

Both are free to download. Digit Matrix sells 6 one-off in-app purchases. 南外方山教师 asks for nothing beyond the download.

Digit Matrix ships an update every 3 weeks, 南外方山教师 every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Digit Matrix | 南外方山教师 |
| --- | --- | --- |
| 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 | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 120 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [振华 许](https://appshunter.io/developer/1437340417) | [Mukun Technology Co., Ltd.](https://appshunter.io/developer/1319273343) |

## 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 |


### 南外方山教师

[App page](https://appshunter.io/ios/app/id1582396044)

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

**In-app purchases:** none


## Frequently asked questions

### Is Digit Matrix free?

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

### Is 南外方山教师 free?

南外方山教师 is free to download, with no in-app purchases.

### Do Digit Matrix or 南外方山教师 have ads?

Digit Matrix shows ads; 南外方山教师 does not.

### Which is updated more often, Digit Matrix or 南外方山教师?

Digit Matrix ships an update every 3 weeks, and 南外方山教师 every 2 months. Most recently, Digit Matrix was updated on November 2, 2026 and 南外方山教师 on November 3, 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.*