# What is a Dollar Worth? vs Correlation Coefficient

The clearest difference is price: What is a Dollar Worth? at Free against Correlation Coefficient's $0.99. What is a Dollar Worth? also leads on iOS requirement (12.0 vs 16.5). On ads, in-app purchases and device support there is nothing between them.

What is a Dollar Worth? 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 | What is a Dollar Worth? | Correlation Coefficient |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.4 (43 ratings)](https://appshunter.io/ios/app/what-is-a-dollar-worth/id474019900/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 80.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | Free | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **12.0** | 16.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Federal Reserve Bank of Minneapolis](https://appshunter.io/developer/474019903) | [Basel AbuTaleb](https://appshunter.io/developer/1604005525) |

## What reviewers say

### What is a Dollar Worth?

[App page](https://appshunter.io/ios/app/what-is-a-dollar-worth/id474019900)

Calculate the historical value of money using inflation data. This tool leverages the Consumer Price Index (CPI) to show how purchasing power has changed from 1913 to the present day.

**Highlights:** Inflation calculator, CPI data integration, Historical value comparison, 1913 to present data, Purchasing power analysis

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

**In-app purchases:** none


### Correlation Coefficient

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is What is a Dollar Worth? free?

What is a Dollar Worth? is free to download, with no in-app purchases.

### Is Correlation Coefficient free?

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

### Do What is a Dollar Worth? or Correlation Coefficient have ads?

Neither What is a Dollar Worth? nor Correlation Coefficient 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.*