# Interactive Physics Simulator vs PhiStruct

The clearest difference is price: PhiStruct at Free against Interactive Physics Simulator's $4.99. Interactive Physics Simulator's advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 2 weeks). On ads, device support and iOS requirement there is nothing between them.

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

Interactive Physics Simulator ships an update weekly, PhiStruct every 2 weeks. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Interactive Physics Simulator | PhiStruct |
| --- | --- | --- |
| 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 | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 9 MB | 6 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Dietmar Henrich](https://appshunter.io/developer/1856587905) | [箫 王](https://appshunter.io/developer/1841884894) |

## 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


### PhiStruct

[App page](https://appshunter.io/ios/app/phistruct/id6794185906)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PhiStruct Complete | $14.99 | one-time |


## Frequently asked questions

### Is Interactive Physics Simulator free?

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

### Is PhiStruct free?

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

### Do Interactive Physics Simulator or PhiStruct have ads?

Neither Interactive Physics Simulator nor PhiStruct shows ads.

### Which is updated more often, Interactive Physics Simulator or PhiStruct?

Interactive Physics Simulator ships an update weekly, and PhiStruct every 2 weeks. Most recently, Interactive Physics Simulator was updated on November 12, 2026 and PhiStruct on November 13, 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.*