# Mechanix vs Eng Dynamics

Mechanix and Eng Dynamics both sit at 5.0 stars, but that hides the real split: 100% of Eng Dynamics's written reviews are positive against 54% of Mechanix's. Eng Dynamics also leads on price (Free vs $2.99) and iOS requirement (9.0 vs 18.6). On rating, ratings volume, update cadence and ads there is nothing between them.

Eng Dynamics is free to download; Mechanix costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Mechanix against 5.0 for Eng Dynamics. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 54% of Mechanix's written reviews are positive against 100% of Eng Dynamics's.

Mechanix ships an update every 9 months, Eng Dynamics every 8 months. The most recent releases landed on September 5, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Mechanix | Eng Dynamics |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/mechanix/id386599739/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/eng-dynamics/id1510250282/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 53.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 8 months** |
| Monetization | Paid | **Freemium** |
| Size | 33 MB | 21 MB |
| Requires iOS | 18.6 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Kurt Gramoll](https://appshunter.io/developer/782218116) |

## What reviewers say

### Mechanix

[App page](https://appshunter.io/ios/app/mechanix/id386599739)

This educational app supports high school and university statics and dynamics courses. It offers a comprehensive review of basic equations, accompanied by over 20 animations and 50 illustrations to clarify complex mechanics concepts. Teachers can use it to present material to students via projector.

**Highlights:** Basic equations memorandum, Illustrative animations, Vectorial reminder, Statics concepts, Center of gravity calculations, Moments of inertia, Dynamics of particles and rigid bodies

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

**In-app purchases:** none


### Eng Dynamics

[App page](https://appshunter.io/ios/app/eng-dynamics/id1510250282)

This app offers practice problems and solutions for engineering Dynamics courses, mirroring textbook structures. It links to a free online eBook for theoretical support. A free version provides limited problems, while a paid version unlocks a comprehensive library.

**Highlights:** Real homework and test problems, Organized by textbook sections/chapters, Complete solutions with graphics, Links to online eBook theory, Extensive problem library (Pro version), Problems used in real engineering classes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mechanix free?

Mechanix costs $2.99, with no in-app purchases.

### Is Eng Dynamics free?

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

### Which has better reviews, Mechanix or Eng Dynamics?

Mechanix and Eng Dynamics are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Mechanix or Eng Dynamics have ads?

Neither Mechanix nor Eng Dynamics shows ads.

### Which is updated more often, Mechanix or Eng Dynamics?

Mechanix ships an update every 9 months, and Eng Dynamics every 8 months. Most recently, Mechanix was updated on September 5, 2026 and Eng Dynamics on June 10, 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.*