# Dirac equation vs EigenAlpha

The clearest difference is in-app purchases: Dirac equation at none against EigenAlpha's 1. Dirac equation also leads on iOS requirement (17 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. EigenAlpha sells 1 one-off in-app purchase. Dirac equation asks for nothing beyond the download.

## The numbers

| Metric | Dirac equation | EigenAlpha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 5 MB | 7 MB |
| Requires iOS | **17** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [JT Scientific Consulting LLC](https://appshunter.io/developer/1612699648) |

## What reviewers say

### Dirac equation

[App page](https://appshunter.io/ios/app/dirac-equation/id6739155551)

**Features:** macOS Compatibility

**In-app purchases:** none


### EigenAlpha

[App page](https://appshunter.io/ios/app/eigenalpha/id6772005828)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $12.99 | one-time |


## Frequently asked questions

### Is Dirac equation free?

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

### Is EigenAlpha free?

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

### Do Dirac equation or EigenAlpha have ads?

Neither Dirac equation nor EigenAlpha shows ads.

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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.*