# Mobile Multibody Dynamics vs 3DPhyS

The clearest difference is ads: Mobile Multibody Dynamics at none against 3DPhyS's shown. Mobile Multibody Dynamics also leads on monetization model (free vs ad-supported). 3DPhyS's advantage is review sentiment (80% vs 50%) and iOS requirement (12.0 vs 16.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mobile Multibody Dynamics ships an update monthly, 3DPhyS fortnightly. The most recent releases landed on September 16, 2026 and August 6, 2026 respectively.

## The numbers

| Metric | Mobile Multibody Dynamics | 3DPhyS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/mobile-multibody-dynamics/id1491149780/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Ad-supported |
| Size | 111 MB | 176 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eliott Radcliffe](https://appshunter.io/developer/1477487767) | [Sota Takasugi](https://appshunter.io/developer/1713502017) |

## What reviewers say

### Mobile Multibody Dynamics

[App page](https://appshunter.io/ios/app/mobile-multibody-dynamics/id1491149780)

This app offers a graphical interface for mechanical engineers and physicists to model and simulate multibody dynamics. It bridges the gap between manual equation derivation and complex CAD-like software, serving as an educational tool for students and professionals.

**Highlights:** Graphical modeling interface, Simulation of multibody dynamics, Educational resource for engineering students, Export custom Python code, Accessible alternative to professional software, On-device modeling and analysis

**In-app purchases:** none


### 3DPhyS

[App page](https://appshunter.io/ios/app/3dphys-physics-simulator/id6470351815)

Explore fundamental physics concepts through interactive simulations. Adjust parameters like initial velocity and bounce coefficient to understand phenomena like free fall, projectile motion, and circular motion. This app supports learning in multiple languages.

**Highlights:** Interactive physics simulations, Adjustable experiment parameters, Multiple physics experiment modules, Multilingual interface, Free to download and use

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mobile Multibody Dynamics free?

Mobile Multibody Dynamics is free to download, with no in-app purchases.

### Is 3DPhyS free?

3DPhyS is free to download, with no in-app purchases.

### Do Mobile Multibody Dynamics or 3DPhyS have ads?

3DPhyS shows ads; Mobile Multibody Dynamics does not.

### Which is updated more often, Mobile Multibody Dynamics or 3DPhyS?

Mobile Multibody Dynamics ships an update monthly, and 3DPhyS fortnightly. Most recently, Mobile Multibody Dynamics was updated on September 16, 2026 and 3DPhyS on August 6, 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.*