# Engineering Converter vs Unit Converter

The clearest difference is ads: Unit Converter at none against Engineering Converter's shown. Unit Converter also leads on update cadence (every 3 weeks vs every 42 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Engineering Converter ships an update every 42 months, Unit Converter every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Engineering Converter | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/unit-converter-all-in-one/id1628090870/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 42 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 6 MB | 64 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brook Wallace](https://appshunter.io/developer/1234097174) | [EQUITYSOFT TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1720881248) |

## What reviewers say

### Engineering Converter

[App page](https://appshunter.io/ios/app/engineering-converter/id1234097175)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-all-in-one/id1628090870)

Easily perform calculations for over 19 categories of units used in daily life. This offline, free application offers a unique design and user-friendly interface for fast and accurate results.

**Highlights:** 19+ unit categories, Offline functionality, Real-time currency exchange, Unique design, User-friendly interface, Fast results

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

**In-app purchases:** none


## Frequently asked questions

### Is Engineering Converter free?

Engineering Converter is free to download, with no in-app purchases.

### Is Unit Converter free?

Unit Converter is free to download, with no in-app purchases.

### Do Engineering Converter or Unit Converter have ads?

Engineering Converter shows ads; Unit Converter does not.

### Which is updated more often, Engineering Converter or Unit Converter?

Engineering Converter ships an update every 42 months, and Unit Converter every 3 weeks. Most recently, Engineering Converter was updated on November 2, 2026 and Unit Converter 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.*