# 82億分の1 vs 2分の1ドア

The clearest difference is iOS requirement: 2分の1ドア at 11.0 against 82億分の1's 15.6. On price and in-app purchases 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 | 82億分の1 | 2分の1ドア |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Size | 65 MB | 66 MB |
| Requires iOS | 15.6 | **11.0** |
| Age rating | 4+ | 4+ |
| Developer | [Ikumi NAKAMURA](https://appshunter.io/developer/1632866319) | [Yutaro Watanabe](https://appshunter.io/developer/1635322990) |

## What reviewers say

### 82億分の1

[App page](https://appshunter.io/ios/app/821/id6445803814)

**In-app purchases:** none


### 2分の1ドア

[App page](https://appshunter.io/ios/app/21/id6477328902)

**In-app purchases:** none


## Frequently asked questions

### Is 82億分の1 free?

82億分の1 is free to download, with no in-app purchases.

### Is 2分の1ドア free?

2分の1ドア is free to download, with no in-app purchases.

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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.*