# Slope Calculator Plus vs Quantum Physics

The clearest difference is price: Quantum Physics at Free against Slope Calculator Plus's $2.99. Slope Calculator Plus's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Quantum Physics is free to download; Slope Calculator Plus costs $2.99 up front. Quantum Physics sells 1 one-off in-app purchase. Slope Calculator Plus asks for nothing beyond the download.

## The numbers

| Metric | Slope Calculator Plus | Quantum Physics |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/quantum-physics-visual-lab/id6772756807/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | — |
| Size | 1 MB | 13 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Slope Calculator Plus

[App page](https://appshunter.io/ios/app/slope-calculator-plus/id1627653061)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quantum Physics

[App page](https://appshunter.io/ios/app/quantum-physics-visual-lab/id6772756807)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Slope Calculator Plus free?

Slope Calculator Plus costs $2.99, with no in-app purchases.

### Is Quantum Physics free?

Quantum Physics is free to download, with in-app purchases available.

### Do Slope Calculator Plus or Quantum Physics have ads?

Quantum Physics shows ads; Slope Calculator Plus does not.

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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.*