# 超特急な速度計 vs 音ボタン SoundBtn

The clearest difference is price: 音ボタン SoundBtn at Free against 超特急な速度計's $0.49. 超特急な速度計's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

音ボタン SoundBtn is free to download; 超特急な速度計 costs $0.49 up front. 音ボタン SoundBtn sells 1 one-off in-app purchase. 超特急な速度計 asks for nothing beyond the download.

## The numbers

| Metric | 超特急な速度計 | 音ボタン SoundBtn |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 2 MB | 60 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Masami Yamate](https://appshunter.io/developer/789133377) | [JiaYuan Yu](https://appshunter.io/developer/6800308304) |

## What reviewers say

### 超特急な速度計

[App page](https://appshunter.io/ios/app/id6503628062)

**In-app purchases:** none


### 音ボタン SoundBtn

[App page](https://appshunter.io/ios/app/soundbtn/id6807745902)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除 | $1.99 | one-time |


## Frequently asked questions

### Is 超特急な速度計 free?

超特急な速度計 costs $0.49, with no in-app purchases.

### Is 音ボタン SoundBtn free?

音ボタン SoundBtn is free to download, with in-app purchases available.

### Do 超特急な速度計 or 音ボタン SoundBtn have ads?

音ボタン SoundBtn shows ads; 超特急な速度計 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.*