# Interactive Physics Simulator vs Projectile Lab by ChatStick

The clearest difference is price: Projectile Lab by ChatStick at Free against Interactive Physics Simulator's $4.99. Interactive Physics Simulator's advantage is in-app purchases (none vs 1) and ads (none vs shown).

Projectile Lab by ChatStick is free to download; Interactive Physics Simulator costs $4.99 up front. Projectile Lab by ChatStick sells 1 one-off in-app purchase. Interactive Physics Simulator asks for nothing beyond the download.

## The numbers

| Metric | Interactive Physics Simulator | Projectile Lab by ChatStick |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/interactive-physics-simulator/id6755827134/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | — |
| Monetization | Paid | — |
| Size | 9 MB | 12 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dietmar Henrich](https://appshunter.io/developer/1856587905) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Interactive Physics Simulator

[App page](https://appshunter.io/ios/app/interactive-physics-simulator/id6755827134)

Explore over 100 real-time physics simulations across 38 modules, covering classical, modern, quantum, and medical physics. Visualize complex phenomena with adjustable parameters, formulas, and immediate visual feedback. Ideal for students and educators seeking an interactive learning laboratory.

**Highlights:** 100+ interactive simulations, 38 physics modules, Real-time parameter control, Adjustable sliders with visual feedback, Formulas and numerical results displayed, Quiz mode for testing understanding, Support for 12 languages

**In-app purchases:** none


### Projectile Lab by ChatStick

[App page](https://appshunter.io/ios/app/projectile-lab-by-chatstick/id6761547280)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Projectile Lab Premium | $2.99 | one-time |


## Frequently asked questions

### Is Interactive Physics Simulator free?

Interactive Physics Simulator costs $4.99, with no in-app purchases.

### Is Projectile Lab by ChatStick free?

Projectile Lab by ChatStick is free to download, with in-app purchases available.

### Do Interactive Physics Simulator or Projectile Lab by ChatStick have ads?

Projectile Lab by ChatStick shows ads; Interactive Physics Simulator 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.*