# Unit Converter vs US Unit Converter

The clearest difference is rating: US Unit Converter at 4.8 against Unit Converter's 3.7. US Unit Converter also leads on ratings volume (110 vs 3). Unit Converter's advantage is update cadence (every 4 days vs every 6 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Unit Converter sells 1 one-off in-app purchase and US Unit Converter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

US Unit Converter holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: US Unit Converter has 110 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 50% of Unit Converter's written reviews are positive against 44% of US Unit Converter's, so the app with the better star average is not the one people write more warmly about.

Unit Converter ships an update every 4 days, US Unit Converter every 6 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Converter | US Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/unit-converter-auc/id1565736843/reviews) | **[4.8 (110 ratings)](https://appshunter.io/ios/app/us-unit-converter/id1577905442/reviews)** |
| Number of ratings | 3 | **110** |
| Positive reviews | **50.0% of reviews** | 44.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 48 MB | 6 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Leite Barbosa Costa](https://appshunter.io/developer/984337133) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-auc/id1565736843)

This tool offers quick and precise conversions for over 20 categories, including units of measurement and currency. Its user-friendly interface makes it ideal for students, travelers, and hobbyists needing reliable results on the go.

**Highlights:** 20+ conversion categories, Real-time currency exchange rates, Intuitive user interface, Offline conversion capability, Accurate and fast results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock All Themes | $4.99 | one-time |


### US Unit Converter

[App page](https://appshunter.io/ios/app/us-unit-converter/id1577905442)

Easily convert between US customary units and the International System of Units for various measurements like length, weight, area, volume, and temperature. Access conversion history and remove ads with a premium upgrade.

**Highlights:** Length conversion, Weight conversion, Area conversion, Liquid volume conversion, Temperature conversion, Conversion history, Ad-free option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM | $3.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

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

### Is US Unit Converter free?

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

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

US Unit Converter is rated higher. Unit Converter averages 3.7 out of 5 from 3 ratings, while US Unit Converter averages 4.8 from 110 ratings.

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

Both Unit Converter and US Unit Converter show ads.

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

Unit Converter ships an update every 4 days, and US Unit Converter every 6 months. Most recently, Unit Converter was updated on October 24, 2026 and US 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.*