# Personal Trainer Exam Prep App vs Interactive Physics Simulator

The clearest difference is update cadence: Interactive Physics Simulator at weekly against Personal Trainer Exam Prep App's every 42 months. Personal Trainer Exam Prep App's advantage is price ($3.99 vs $4.99) and iOS requirement (12.4 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Personal Trainer Exam Prep App costs $3.99 and Interactive Physics Simulator $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Personal Trainer Exam Prep App ships an update every 42 months, Interactive Physics Simulator weekly. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Personal Trainer Exam Prep App | Interactive Physics Simulator |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Weekly** |
| Monetization | — | Paid |
| Size | 11 MB | 9 MB |
| Requires iOS | **12.4** | 17.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 9+ | 4+ |
| Developer | [Tourkia CHIHI](https://appshunter.io/developer/1105976811) | [Dietmar Henrich](https://appshunter.io/developer/1856587905) |

## What reviewers say

### Personal Trainer Exam Prep App

[App page](https://appshunter.io/ios/app/personal-trainer-exam-prep-app/id1209899939)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Personal Trainer Exam Prep App free?

Personal Trainer Exam Prep App costs $3.99, with no in-app purchases.

### Is Interactive Physics Simulator free?

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

### Do Personal Trainer Exam Prep App or Interactive Physics Simulator have ads?

Neither Personal Trainer Exam Prep App nor Interactive Physics Simulator shows ads.

### Which is updated more often, Personal Trainer Exam Prep App or Interactive Physics Simulator?

Personal Trainer Exam Prep App ships an update every 42 months, and Interactive Physics Simulator weekly. Most recently, Personal Trainer Exam Prep App was updated on September 8, 2026 and Interactive Physics Simulator on September 20, 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.*