# Eng Mechanics vs Mechanical Formula

Eng Mechanics and Mechanical Formula both sit at 4.8 stars, but that hides the real split: 75% of Eng Mechanics's written reviews are positive against 0% of Mechanical Formula's. Eng Mechanics also leads on in-app purchases (none vs 1) and iOS requirement (9.0 vs 13.0). Mechanical Formula's advantage is update cadence (every 4 months vs every 12 months) and ratings volume (34 vs 4). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Mechanical Formula sells 1 one-off in-app purchase. Eng Mechanics asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Eng Mechanics against 4.7 for Mechanical Formula. That said, the two scores are not equally well evidenced: Mechanical Formula has 34 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 75% of Eng Mechanics's written reviews are positive against 0% of Mechanical Formula's.

Eng Mechanics ships an update every 12 months, Mechanical Formula every 4 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Eng Mechanics | Mechanical Formula |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/eng-mechanics/id1526030024/reviews)** | [4.7 (34 ratings)](https://appshunter.io/ios/app/mechanical-formula/id1668948373/reviews) |
| Number of ratings | 4 | **34** |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 42 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kurt Gramoll](https://appshunter.io/developer/782218116) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Eng Mechanics

[App page](https://appshunter.io/ios/app/eng-mechanics/id1526030024)

This app offers a comprehensive collection of mechanics of materials problems and solutions, mirroring common textbook structures. It provides detailed explanations with graphics and links to an online eBook for further study. Access to all problems requires a paid upgrade.

**Highlights:** Mechanics of Materials problems, Complete solutions with graphics, Organized by textbook sections, Links to online eBook, Real engineering class problems, Updated error corrections

**Features:** macOS Compatibility

**In-app purchases:** none


### Mechanical Formula

[App page](https://appshunter.io/ios/app/mechanical-formula/id1668948373)

This app provides over 200 essential mechanical engineering formulas and calculations in a user-friendly tool. It's designed to simplify complex concepts and speed up problem-solving for students, professionals, and educators.

**Highlights:** 200+ mechanical engineering formulas, Instant calculations, Intuitive interface, Real-world application explanations, Exam preparation aid, Lifetime Premium option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Eng Mechanics free?

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

### Is Mechanical Formula free?

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

### Which has better reviews, Eng Mechanics or Mechanical Formula?

Eng Mechanics is rated higher. Eng Mechanics averages 4.8 out of 5 from 4 ratings, while Mechanical Formula averages 4.7 from 34 ratings.

### Do Eng Mechanics or Mechanical Formula have ads?

Neither Eng Mechanics nor Mechanical Formula shows ads.

### Which is updated more often, Eng Mechanics or Mechanical Formula?

Eng Mechanics ships an update every 12 months, and Mechanical Formula every 4 months. Most recently, Eng Mechanics was updated on November 3, 2026 and Mechanical Formula on November 3, 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.*