# Quadratic Equation vs EigenAlpha

The clearest difference is in-app purchases: Quadratic Equation at none against EigenAlpha's 1. Quadratic Equation also leads on iOS requirement (12.0 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. Quadratic Equation asks for nothing beyond the download.

## The numbers

| Metric | Quadratic Equation | EigenAlpha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 23 MB | 7 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Science Education Institute](https://appshunter.io/developer/1439710468) | [JT Scientific Consulting LLC](https://appshunter.io/developer/1612699648) |

## What reviewers say

### Quadratic Equation

[App page](https://appshunter.io/ios/app/quadratic-equation-factoring/id6742711326)

**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 Quadratic Equation free?

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

### Is EigenAlpha free?

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

### Do Quadratic Equation or EigenAlpha have ads?

Neither Quadratic 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.*