# Unit Converter vs EHSTracks

The clearest difference is update cadence: Unit Converter at weekly against EHSTracks's every 4 weeks. Unit Converter also leads on ratings volume (18 vs 3). EHSTracks's advantage is review sentiment (100% vs 90%) and device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Unit Converter against 5.0 for EHSTracks. That said, the two scores are not equally well evidenced: Unit Converter has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 90% of Unit Converter's written reviews are positive against 100% of EHSTracks's.

Unit Converter ships an update weekly, EHSTracks every 4 weeks. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Unit Converter | EHSTracks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (18 ratings)](https://appshunter.io/ios/app/unit-converter-scientific/id6692634387/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ehstracks/id6748774666/reviews)** |
| Number of ratings | **18** | 3 |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 4 MB | 49 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmet Burak Albayrak](https://appshunter.io/developer/1769045837) | [EHSTracks](https://appshunter.io/developer/1827339657) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-scientific/id6692634387)

Easily perform instant unit conversions across a vast array of categories, from engineering to everyday life. Features include dark mode, favorites, and dual language support for enhanced usability. Ideal for scientists, engineers, students, and anyone needing quick, accurate conversions.

**Highlights:** Extensive conversion categories, Dark mode for night use, Favorite frequently used conversions, Dual language support, Offline functionality, User feedback option

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

**In-app purchases:** none


### EHSTracks

[App page](https://appshunter.io/ios/app/ehstracks/id6748774666)

Streamline Environmental Health and Safety (EHS) compliance for your business. This app simplifies management, offers real-time monitoring, and generates robust reports for seamless regulatory adherence and transparency.

**Highlights:** Effortless compliance management, Customizable solutions, Real-time monitoring and alerts, Robust reporting, Collaborative platform

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is EHSTracks free?

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

### Which has better reviews, Unit Converter or EHSTracks?

EHSTracks is rated higher. Unit Converter averages 4.9 out of 5 from 18 ratings, while EHSTracks averages 5.0 from 3 ratings.

### Do Unit Converter or EHSTracks have ads?

Neither Unit Converter nor EHSTracks shows ads.

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

Unit Converter ships an update weekly, and EHSTracks every 4 weeks. Most recently, Unit Converter was updated on October 24, 2026 and EHSTracks on October 12, 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.*