# Mechanical Engg. Calculator vs mechanical design engine

The clearest difference is update cadence: mechanical design engine at every 2 months against Mechanical Engg. Calculator's every 21 months. On price, ads, 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.

Mechanical Engg. Calculator ships an update every 21 months, mechanical design engine every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mechanical Engg. Calculator | mechanical design engine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/mechanical-engg-calculator/id1100129593/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 24 MB | 63 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [gan dae choi](https://appshunter.io/developer/1574341439) |

## What reviewers say

### Mechanical Engg. Calculator

[App page](https://appshunter.io/ios/app/mechanical-engg-calculator/id1100129593)

This app provides a comprehensive collection of ~250 formulas across 16 categories for mechanical engineering, physics, and mathematics. Users can easily perform calculations by selecting a formula and inputting variables.

**Highlights:** ~250 formulas, 16 categories, Mathematics, physics, mechanical engineering, User-friendly calculation input, Customizable for convenience

**Features:** macOS Compatibility

**In-app purchases:** none


### mechanical design engine

[App page](https://appshunter.io/ios/app/mechanical-design-engine/id1574341437)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Engg. Calculator free?

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

### Is mechanical design engine free?

mechanical design engine is free to download, with no in-app purchases.

### Do Mechanical Engg. Calculator or mechanical design engine have ads?

Neither Mechanical Engg. Calculator nor mechanical design engine shows ads.

### Which is updated more often, Mechanical Engg. Calculator or mechanical design engine?

Mechanical Engg. Calculator ships an update every 21 months, and mechanical design engine every 2 months. Most recently, Mechanical Engg. Calculator was updated on November 2, 2026 and mechanical design engine 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.*