# Quick Correlation Coefficients vs LinearSolver

The clearest difference is price: Quick Correlation Coefficients at Free against LinearSolver's $1.99. Quick Correlation Coefficients also leads on update cadence (every 4 months vs every 39 months). LinearSolver's advantage is rating (3.0 vs 1.0). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Quick Correlation Coefficients is free to download; LinearSolver costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LinearSolver holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Quick Correlation Coefficients ships an update every 4 months, LinearSolver every 39 months. The most recent releases landed on October 6, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Quick Correlation Coefficients | LinearSolver |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/quick-correlation-coefficients/id478355922/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/linearsolver/id895469797/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 39 months |
| Monetization | **Free** | Paid |
| Size | 1 MB | 8 MB |
| Requires iOS | 12.3 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MSYapps](https://appshunter.io/developer/458482419) | [Alexander Gurzhiev](https://appshunter.io/developer/751489903) |

## 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


### LinearSolver

[App page](https://appshunter.io/ios/app/linearsolver/id895469797)

Solve systems of linear equations with multiple variables using two distinct methods. Input your equations, select a solving technique, and view detailed step-by-step solutions. Ideal for students and professionals needing quick and accurate calculations.

**Highlights:** Solves systems of linear equations, Supports n variables, Gaussian elimination method, Cramer's rule method, Detailed solution steps, User-friendly input interface

**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 LinearSolver free?

LinearSolver costs $1.99, with no in-app purchases.

### Which has better reviews, Quick Correlation Coefficients or LinearSolver?

LinearSolver is rated higher. Quick Correlation Coefficients averages 1.0 out of 5 from 1 ratings, while LinearSolver averages 3.0 from 1 ratings.

### Do Quick Correlation Coefficients or LinearSolver have ads?

Neither Quick Correlation Coefficients nor LinearSolver shows ads.

### Which is updated more often, Quick Correlation Coefficients or LinearSolver?

Quick Correlation Coefficients ships an update every 4 months, and LinearSolver every 39 months. Most recently, Quick Correlation Coefficients was updated on October 6, 2026 and LinearSolver on September 22, 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.*