# TemperatureConverterY vs US Unit Converter

The clearest difference is review sentiment: TemperatureConverterY at 100% against US Unit Converter's 44%. TemperatureConverterY also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. US Unit Converter sells 1 one-off in-app purchase. TemperatureConverterY asks for nothing beyond the download.

TemperatureConverterY ships an update every 7 months, US Unit Converter every 6 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TemperatureConverterY | US Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (110 ratings)](https://appshunter.io/ios/app/us-unit-converter/id1577905442/reviews)** |
| Number of ratings | — | **110** |
| Positive reviews | **100.0% of reviews** | 44.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 6 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yoshiaki Onishi](https://appshunter.io/developer/852893746) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### TemperatureConverterY

[App page](https://appshunter.io/ios/app/temperatureconvertery/id1139106640)

Easily convert temperatures between Celsius, Fahrenheit, and Kelvin. Simply input your temperature, and the app will automatically display the converted results.

**Highlights:** Temperature conversion, Celsius support, Fahrenheit support, Kelvin support, Automatic calculation

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

**In-app purchases:** none


### 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 TemperatureConverterY free?

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

### Is US Unit Converter free?

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

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

US Unit Converter shows ads; TemperatureConverterY does not.

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

TemperatureConverterY ships an update every 7 months, and US Unit Converter every 6 months. Most recently, TemperatureConverterY was updated on October 19, 2026 and US Unit Converter on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*