# Matrix vs eigenCalc

The clearest difference is price: eigenCalc at Free against Matrix's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

eigenCalc is free to download; Matrix costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Matrix ships an update every 5 weeks, eigenCalc monthly. The most recent releases landed on August 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Matrix | eigenCalc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 28 MB | 2 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [Luis Acevedo-Arreguin](https://appshunter.io/developer/1642773653) |

## What reviewers say

### Matrix

[App page](https://appshunter.io/ios/app/matrix-analysis-pro/id1619004498)

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

**In-app purchases:** none


### eigenCalc

[App page](https://appshunter.io/ios/app/eigencalc/id6503222785)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Matrix free?

Matrix costs $1.99, with no in-app purchases.

### Is eigenCalc free?

eigenCalc is free to download, with no in-app purchases.

### Do Matrix or eigenCalc have ads?

Neither Matrix nor eigenCalc shows ads.

### Which is updated more often, Matrix or eigenCalc?

Matrix ships an update every 5 weeks, and eigenCalc monthly. Most recently, Matrix was updated on August 16, 2026 and eigenCalc on September 17, 2026.

---

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