# Quick Correlation Coefficients

> Calculates correlation coefficients between numerical data sets. (iPhone/iPad app by MSYapps.)

- Source: https://appshunter.io/ios/app/quick-correlation-coefficients/id478355922 (this page in markdown: same URL + `.md`)
- Developer: [MSYapps](https://appshunter.io/developer/458482419)
- Category: Education, Utilities
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.3 · 1 MB
- Languages: American English
- Released: 2011-11-10
- Data updated: 2026-08-17
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/quick-correlation-coefficients/id478355922/reviews.md

## What is Quick Correlation Coefficients?

The correlation coefficient (commonly noted by the Greek letter rho, ρ) measures the degree to which two sets of numbers are related. The correlation coefficient can range from -1.000 to +1.000 with a 0 indicating that there is no relation between the two sets.

A 'slider' data entry option allows rapid creation of numerical data. Additionally, you may use the 'keypad' data entry option to expand the numerical range beyond plus or minus 1,000.

In this application, you may relate two or three sets of numbers and the correlations between the sets are shown as ρ(AB), ρ(AC), and ρ(BC), where the letters A, B, and C represent the columns. 

There must be at least 3 pairs of numbers in any 2 rows for the correlation coefficient to be computed. Zero is a number but 'n/a' is not. If, for example, Column A has 5 rows of numbers and the 6th row is 'n/a' and Column B has 4 rows of numbers and the 5th row is 'n/a', the correlation coefficient, ρ(AB), will be computed for the first 4 pairs of numbers.

## Key features

- Calculate correlation coefficient (rho)
- Relate two or three data sets
- Slider data entry
- Keypad data entry
- Handles missing data (n/a)
- Minimum 3 data pairs required

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/quick-correlation-coefficients/id478355922/reviews.md

### 1/5 — Scam

*2015-10-11*

I down loaded the app and tried to open it but it didn't open. I did everything to open and it didnt. I can say that they are a scam they stole my money. Avoid this app. It doesnt work.

### 2/5 — Not optimal

*2012-05-08*

The slider is function is a joke, and you can't use decimal points, but at least it works. I have yet to find any alternatives.

## Frequently asked questions about Quick Correlation Coefficients

### What is Quick Correlation Coefficients used for?

Quick Correlation Coefficients is used to measure the degree to which two or three sets of numerical data are related. It calculates the correlation coefficient, often denoted by the Greek letter rho (ρ), which ranges from -1.000 to +1.000.

### How do I enter data into Quick Correlation Coefficients?

You can enter numerical data using a convenient 'slider' option for rapid creation or a 'keypad' option for a wider numerical range. The app requires at least 3 pairs of numbers in any two rows for computation.

### Can Quick Correlation Coefficients handle missing data?

Yes, the app can handle missing data. If a value is marked as 'n/a', it will be excluded from the calculation for that specific pair, allowing for accurate computation based on available data.

### What is the minimum data required for Quick Correlation Coefficients?

To compute the correlation coefficient, there must be at least 3 pairs of numbers in any two rows. If one column has fewer valid entries than another, the calculation will be based on the minimum number of complete pairs.

### What devices does Quick Correlation Coefficients support?

Quick Correlation Coefficients is available for iPhone and iPod devices. It runs on iOS and is designed for mobile use.

### When was Quick Correlation Coefficients last updated?

The latest version of Quick Correlation Coefficients was released on July 10, 2021. The app was initially released on November 10, 2011.

### What is the age rating for Quick Correlation Coefficients?

Quick Correlation Coefficients has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Does Quick Correlation Coefficients have ads?

No, Quick Correlation Coefficients does not contain advertisements. The app is free to download and use without any ad interruptions.

## Version history (last 5 releases)

### 4.0 — 2021-07-10

- Changes necessitated by iOS 13 & 14
- Removed links to Facebook and Twitter
- Various GUI changes and enhancements
- Some code simplification

### 3.4 — 2018-05-21

This app has been updated by Apple to display the Apple Watch app icon.

- Updated to run under iOS 11.
- Corrected scroll view issue on information view.
- Updated deprecated alert displays.

### 3.3 — 2015-10-01

- Changes to accommodate iOS 9, mostly font changes.
- Some GUI tweaks.

### 3.2 — 2015-06-29

- Revised GUI with newly designed objects.
- Added links to Facebook and Twitter.
- New icon.

### 3.1 — 2014-10-28

- Updated for iOS 8
- Minor GUI changes

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All apps by MSYapps: https://appshunter.io/developer/458482419

## Related topics

[quick correlation coefficients](https://appshunter.io/ios/topics/quick-correlation-coefficients) · [correlation coefficient](https://appshunter.io/ios/topics/correlation-coefficient) · [coefficient](https://appshunter.io/ios/topics/coefficient)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*