# US単位コンバーター vs Unit Converter

The clearest difference is update cadence: US単位コンバーター at every 3 weeks against Unit Converter's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

US単位コンバーター ships an update every 3 weeks, Unit Converter every 2 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | US単位コンバーター | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 41 MB | 11 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Taiki Saito](https://appshunter.io/developer/995768398) | [MITSUKO MARGOT KUBOTA ONO](https://appshunter.io/developer/1799524637) |

## What reviewers say

### US単位コンバーター

[App page](https://appshunter.io/ios/app/us/id1607728774)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-us-units/id6760955491)

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

**In-app purchases:** none


## Frequently asked questions

### Is US単位コンバーター free?

US単位コンバーター 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 US単位コンバーター or Unit Converter have ads?

Both US単位コンバーター and Unit Converter show ads.

### Which is updated more often, US単位コンバーター or Unit Converter?

US単位コンバーター ships an update every 3 weeks, and Unit Converter every 2 months. Most recently, US単位コンバーター was updated on October 20, 2026 and Unit Converter on October 7, 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.*