# Quick Correlation Coefficients vs NIAID Stats Calculator

The clearest difference is update cadence: NIAID Stats Calculator at daily against Quick Correlation Coefficients's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick Correlation Coefficients ships an update every 4 months, NIAID Stats Calculator daily. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Quick Correlation Coefficients | NIAID Stats Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/quick-correlation-coefficients/id478355922/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free | — |
| Size | 1 MB | 14 MB |
| Requires iOS | **12.3** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MSYapps](https://appshunter.io/developer/458482419) | [NIAID](https://appshunter.io/developer/1342358975) |

## What reviewers say

### Quick Correlation Coefficients

[App page](https://appshunter.io/ios/app/quick-correlation-coefficients/id478355922)

This app calculates the correlation coefficient between two or three sets of numerical data. It offers flexible data entry methods, including a slider and keypad, and handles missing values to compute relationships accurately.

**Highlights:** 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

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

**In-app purchases:** none


### NIAID Stats Calculator

[App page](https://appshunter.io/ios/app/niaid-stats-calculator/id6738212796)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quick Correlation Coefficients free?

Quick Correlation Coefficients is free to download, with no in-app purchases.

### Is NIAID Stats Calculator free?

NIAID Stats Calculator is free to download, with no in-app purchases.

### Do Quick Correlation Coefficients or NIAID Stats Calculator have ads?

Neither Quick Correlation Coefficients nor NIAID Stats Calculator shows ads.

### Which is updated more often, Quick Correlation Coefficients or NIAID Stats Calculator?

Quick Correlation Coefficients ships an update every 4 months, and NIAID Stats Calculator daily. Most recently, Quick Correlation Coefficients was updated on November 6, 2026 and NIAID Stats Calculator on October 25, 2026.

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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.*