# 英語読み上げ算 vs 単位図鑑

The clearest difference is ads: 単位図鑑 at none against 英語読み上げ算's shown. 単位図鑑 also leads on iOS requirement (15.0 vs 18.1). On price, 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.

## The numbers

| Metric | 英語読み上げ算 | 単位図鑑 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Size | 4 MB | 2 MB |
| Requires iOS | 18.1 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TSUKASA YONAHA](https://appshunter.io/developer/1835823966) | [KOHEI YAMASHITA](https://appshunter.io/developer/1876841861) |

## What reviewers say

### 英語読み上げ算

[App page](https://appshunter.io/ios/app/lite/id6752524653)

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

**In-app purchases:** none


### 単位図鑑

[App page](https://appshunter.io/ios/app/id6760615566)

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

**In-app purchases:** none


## Frequently asked questions

### Is 英語読み上げ算 free?

英語読み上げ算 is free to download, with no in-app purchases.

### Is 単位図鑑 free?

単位図鑑 is free to download, with no in-app purchases.

### Do 英語読み上げ算 or 単位図鑑 have ads?

英語読み上げ算 shows ads; 単位図鑑 does not.

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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.*