# 禁煙くん vs Voidspace

The clearest difference is device support: Voidspace at 2 against 禁煙くん's —. Voidspace 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 禁煙くん | Voidspace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Size | 3 MB | 7 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Yoshimichi Kato](https://appshunter.io/developer/1882343854) | [Kunihiko Ayuha](https://appshunter.io/developer/6779509130) |

## What reviewers say

### 禁煙くん

[App page](https://appshunter.io/ios/app/id6760255111)

**In-app purchases:** none


### Voidspace

[App page](https://appshunter.io/ios/app/voidspace-breathwork-app/id6787887612)

**In-app purchases:** none


## Frequently asked questions

### Is 禁煙くん free?

禁煙くん is free to download, with no in-app purchases.

### Is Voidspace free?

Voidspace 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.*