# Mechanical Pendulums vs 3D Fish Anatomy

The clearest difference is price: Mechanical Pendulums at Free against 3D Fish Anatomy's $11.99. Mechanical Pendulums also leads on rating (5.0 vs 4.5). 3D Fish Anatomy's advantage is device support and iOS requirement (12.0 vs 15.0). On ratings volume and in-app purchases there is nothing between them.

Mechanical Pendulums is free to download; 3D Fish Anatomy costs $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mechanical Pendulums holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | Mechanical Pendulums | 3D Fish Anatomy |
| --- | --- | --- |
| Price | **Free** | $11.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mechanical-pendulums/id377376047/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/3d-fish-anatomy/id1151204663/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 20 months |
| Monetization | **Free** | Paid |
| Size | 0 MB | 115 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ManneTroll Solutions](https://appshunter.io/developer/313743954) | [Biosphera](https://appshunter.io/developer/569303204) |

## What reviewers say

### Mechanical Pendulums

[App page](https://appshunter.io/ios/app/mechanical-pendulums/id377376047)

Explore the complex and often chaotic motion of coupled pendulums. Interact with double, triple, quadruple, and even octuple pendulums, visualizing their behavior in 2D or 3D.

**Highlights:** N-tuple pendulum simulations, Interactive motion control, Multiple pendulum configurations, Quartz and OpenGL visualization, Derived equations of motion, 4th order Runge-Kutta solver

**In-app purchases:** none


### 3D Fish Anatomy

[App page](https://appshunter.io/ios/app/3d-fish-anatomy/id1151204663)

Explore the detailed internal and external anatomy of a perch with an interactive 3D model. View and manipulate systems layer by layer or simultaneously, highlighting structures with captions. Ideal for zoology, ichthyology, and fish biology studies.

**Highlights:** Interactive 3D perch model, View internal and external anatomy, Layer-by-layer system exploration, Adjustable zoom levels, Highlight anatomical structures with captions, Multi-language support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Pendulums free?

Mechanical Pendulums is free to download, with no in-app purchases.

### Is 3D Fish Anatomy free?

3D Fish Anatomy costs $11.99, with no in-app purchases.

### Which has better reviews, Mechanical Pendulums or 3D Fish Anatomy?

Mechanical Pendulums is rated higher. Mechanical Pendulums averages 5.0 out of 5 from 1 ratings, while 3D Fish Anatomy averages 4.5 from 2 ratings.

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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.*