# O vs ボイトレ健康診断

The clearest difference is device support: O at 3 against ボイトレ健康診断's —. O also leads on iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. O sells 2 in-app purchases, starting at $2.99 per month and ボイトレ健康診断 sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | O | ボイトレ健康診断 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 2 weeks | — |
| Size | 49 MB | 29 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 12+ | 4+ |
| Developer | [Morson Japan](https://appshunter.io/developer/496417616) | [Ao Yato](https://appshunter.io/developer/1875620058) |

## What reviewers say

### O

[App page](https://appshunter.io/ios/app/o-trainer/id6443540195)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン（１ヶ月） | $2.99 | per month |
| 広告を削除 | $2.99 | one-time |


### ボイトレ健康診断

[App page](https://appshunter.io/ios/app/id6763736873)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Skills | $2.99 | per month |
| Pro Plan | $5.99 | per month |


## Frequently asked questions

### Is O free?

O is free to download, with in-app purchases available.

### Is ボイトレ健康診断 free?

ボイトレ健康診断 is free to download, with in-app purchases available.

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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.*