# Matrix vs eigenCalc

The clearest difference is ads: eigenCalc at none against Matrix's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 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 December 3, 2025 and September 17, 2026 respectively.

## The numbers

| Metric | Matrix | eigenCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 32 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/id1619005601)

**Features:** macOS Compatibility

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

### Is eigenCalc free?

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

### Do Matrix or eigenCalc have ads?

Matrix shows ads; eigenCalc does not.

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

Matrix ships an update every 5 weeks, and eigenCalc monthly. Most recently, Matrix was updated on December 3, 2025 and eigenCalc 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.*