# Unit Converter vs YouKon Engineer Unit Converter

The clearest difference is rating: Unit Converter at 4.8 against YouKon Engineer Unit Converter's 4.0. Unit Converter also leads on ratings volume (13 vs 1). YouKon Engineer Unit Converter's advantage is ads (none vs shown) and update cadence (daily vs every 13 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Unit Converter sells 2 in-app purchases, starting at $4.99 per month and YouKon Engineer Unit Converter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Unit Converter has 13 ratings behind it against 1, so its average is the more settled of the two.

Unit Converter ships an update every 13 months, YouKon Engineer Unit Converter daily. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Converter | YouKon Engineer Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/unit-converter/id1377049882/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/youkon-engineer-unit-converter/id6477476799/reviews) |
| Number of ratings | **13** | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 13 months | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 50 MB | 64 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Eliott Radcliffe](https://appshunter.io/developer/1477487767) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter/id1377049882)

This app offers a wide range of unit conversions for various measurements, from temperature to length. It features a user-friendly interface, customizable themes, and smart features that remember your frequent conversions. It also links to external apps for specialized tasks.

**Highlights:** Broad conversion spectrum, Personalizable themes, User-friendly interface, Smart features for frequent conversions, Links to specialized external apps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter | $4.99 | per month |
| Unit Converter | $39.99 | per year |


### YouKon Engineer Unit Converter

[App page](https://appshunter.io/ios/app/youkon-engineer-unit-converter/id6477476799)

This tool simplifies unit conversions for engineers, scientists, and developers. Organize and manage material properties and technical parameters across multiple unit systems within projects. It ensures consistency and accuracy for various technical applications.

**Highlights:** Effortless unit conversion, Organize properties into projects, Support for custom units, Cross-device project sync, Secure data management, Ideal for engineering and gaming

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extended | $0.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

Unit Converter is free to download, with in-app purchases available.

### Is YouKon Engineer Unit Converter free?

YouKon Engineer Unit Converter is free to download, with in-app purchases available.

### Which has better reviews, Unit Converter or YouKon Engineer Unit Converter?

Unit Converter is rated higher. Unit Converter averages 4.8 out of 5 from 13 ratings, while YouKon Engineer Unit Converter averages 4.0 from 1 ratings.

### Do Unit Converter or YouKon Engineer Unit Converter have ads?

Unit Converter shows ads; YouKon Engineer Unit Converter does not.

### Which is updated more often, Unit Converter or YouKon Engineer Unit Converter?

Unit Converter ships an update every 13 months, and YouKon Engineer Unit Converter daily. Most recently, Unit Converter was updated on October 29, 2026 and YouKon Engineer Unit Converter on October 25, 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.*