# LinearSolver vs Von Neumann entropy

The clearest difference is price: Von Neumann entropy at Free against LinearSolver's $1.99. LinearSolver's advantage is iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | LinearSolver | Von Neumann entropy |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/linearsolver/id895469797/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | — |
| Monetization | Paid | — |
| Size | 8 MB | 5 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Gurzhiev](https://appshunter.io/developer/751489903) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### 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


### Von Neumann entropy

[App page](https://appshunter.io/ios/app/von-neumann-entropy/id6736854190)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LinearSolver free?

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

### Is Von Neumann entropy free?

Von Neumann entropy is free to download, with no in-app purchases.

### Do LinearSolver or Von Neumann entropy have ads?

Neither LinearSolver nor Von Neumann entropy 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.*