# CheckBoostAudio vs 超難関英単語四択クイズ

The clearest difference is ads: CheckBoostAudio at none against 超難関英単語四択クイズ's shown. CheckBoostAudio also leads on iOS requirement (13.0 vs 15.0). 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 | CheckBoostAudio | 超難関英単語四択クイズ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | — |
| Size | 32 MB | 147 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masatomo Fukuda](https://appshunter.io/developer/1599921920) | [Masaki Kanno](https://appshunter.io/developer/843112443) |

## What reviewers say

### CheckBoostAudio

[App page](https://appshunter.io/ios/app/checkboostaudio/id6740433605)

**Features:** macOS Compatibility

**In-app purchases:** none


### 超難関英単語四択クイズ

[App page](https://appshunter.io/ios/app/id6767738576)

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

**In-app purchases:** none


## Frequently asked questions

### Is CheckBoostAudio free?

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

### Is 超難関英単語四択クイズ free?

超難関英単語四択クイズ is free to download, with no in-app purchases.

### Do CheckBoostAudio or 超難関英単語四択クイズ have ads?

超難関英単語四択クイズ shows ads; CheckBoostAudio 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.*