# Matrix math calculator vs Num37

The clearest difference is in-app purchases: Matrix math calculator at none against Num37's 5. Matrix math calculator also leads on update cadence (every 3 months vs every 43 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Num37 sells 5 one-off in-app purchases. Matrix math calculator asks for nothing beyond the download.

Matrix math calculator ships an update every 3 months, Num37 every 43 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Matrix math calculator | Num37 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/matrix-math-calculator/id993273855/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 43 months |
| Monetization | Free | — |
| Size | 52 MB | 8 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [camilo arcila](https://appshunter.io/developer/993049913) | [Sinji Sato](https://appshunter.io/developer/1437043041) |

## What reviewers say

### Matrix math calculator

[App page](https://appshunter.io/ios/app/matrix-math-calculator/id993273855)

Perform various matrix operations including addition, subtraction, and multiplication. Calculate the transposed matrix, adjoint, inverse, determinant, and rank. Supports matrices of any size (MxN).

**Highlights:** Matrix Addition, Matrix Subtraction, Matrix Multiplication, Transposed Matrix, Adjoint Matrix, Inverse Matrix, Determinant Calculation, Rank Calculation

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

**In-app purchases:** none


### Num37

[App page](https://appshunter.io/ios/app/num37/id1517203600)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Num3 | $1.99 | one-time |
| Num4 | $1.99 | one-time |
| Num5 | $1.99 | one-time |
| Num7 | $1.99 | one-time |
| Num6 | $1.99 | one-time |


## Frequently asked questions

### Is Matrix math calculator free?

Matrix math calculator is free to download, with no in-app purchases.

### Is Num37 free?

Num37 is free to download, with in-app purchases available.

### Do Matrix math calculator or Num37 have ads?

Neither Matrix math calculator nor Num37 shows ads.

### Which is updated more often, Matrix math calculator or Num37?

Matrix math calculator ships an update every 3 months, and Num37 every 43 months. Most recently, Matrix math calculator was updated on October 25, 2026 and Num37 on October 25, 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.*