# ジャストストップ！ vs PerfectTimingChallenge

The clearest difference is device support: PerfectTimingChallenge at 3 against ジャストストップ！'s —. PerfectTimingChallenge also leads on iOS requirement (12.0 vs 15.0). 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 | ジャストストップ！ | PerfectTimingChallenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Size | 5 MB | 29 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [hayashida reo](https://appshunter.io/developer/1670991875) | [Akari Ohta](https://appshunter.io/developer/1727974130) |

## What reviewers say

### ジャストストップ！

[App page](https://appshunter.io/ios/app/id6446065460)

**In-app purchases:** none


### PerfectTimingChallenge

[App page](https://appshunter.io/ios/app/perfecttimingchallenge/id6476839944)

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

**In-app purchases:** none


## Frequently asked questions

### Is ジャストストップ！ free?

ジャストストップ！ is free to download, with no in-app purchases.

### Is PerfectTimingChallenge free?

PerfectTimingChallenge 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.*