# Correlation Coefficient vs The Edison School

The clearest difference is price: The Edison School at Free against Correlation Coefficient's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

The Edison School is free to download; Correlation Coefficient costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Correlation Coefficient | The Edison School |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 1 MB | 55 MB |
| Requires iOS | 16.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Basel AbuTaleb](https://appshunter.io/developer/1604005525) | [The Edison School](https://appshunter.io/developer/1740373016) |

## What reviewers say

### Correlation Coefficient

[App page](https://appshunter.io/ios/app/correlation-coefficient/id6473872692)

**Features:** macOS Compatibility

**In-app purchases:** none


### The Edison School

[App page](https://appshunter.io/ios/app/the-edison-school/id6483933313)

**In-app purchases:** none


## Frequently asked questions

### Is Correlation Coefficient free?

Correlation Coefficient costs $0.99, with no in-app purchases.

### Is The Edison School free?

The Edison School is free to download, with no in-app purchases.

### Do Correlation Coefficient or The Edison School have ads?

Neither Correlation Coefficient nor The Edison School 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.*