# 端玉計算 vs Unit Converter

The clearest difference is update cadence: Unit Converter at every 4 days against 端玉計算's every 2 months. Unit Converter also leads on iOS requirement (13.0 vs 16.0). 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.

端玉計算 ships an update every 2 months, Unit Converter every 4 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 端玉計算 | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 6 MB | 46 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [S K S, K.K.](https://appshunter.io/developer/1703432739) | [Takumi Kinjo](https://appshunter.io/developer/1870472112) |

## What reviewers say

### 端玉計算

[App page](https://appshunter.io/ios/app/id6477461892)

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

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-henkankun/id6758116488)

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

**In-app purchases:** none


## Frequently asked questions

### Is 端玉計算 free?

端玉計算 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 端玉計算 or Unit Converter have ads?

Both 端玉計算 and Unit Converter show ads.

### Which is updated more often, 端玉計算 or Unit Converter?

端玉計算 ships an update every 2 months, and Unit Converter every 4 days. Most recently, 端玉計算 was updated on November 8, 2026 and Unit Converter on November 5, 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.*