# ジャストストップ！ vs Time Perception Test

The clearest difference is device support: Time Perception Test at 2 against ジャストストップ！'s —. Time Perception Test 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！ | Time Perception Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/time-perception-test/id6449470351/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Ad-supported |
| Size | 5 MB | 46 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [hayashida reo](https://appshunter.io/developer/1670991875) | [Osawa Shunsuke](https://appshunter.io/developer/477431394) |

## What reviewers say

### ジャストストップ！

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

**In-app purchases:** none


### Time Perception Test

[App page](https://appshunter.io/ios/app/time-perception-test/id6449470351)

Test your ability to accurately judge time intervals from 1 to 30 seconds. Improve your time sense and enhance productivity and decision-making skills in daily life. This app helps you develop a better understanding of time and manage your schedule more effectively.

**Highlights:** Test time intervals (1, 3, 5, 10, 30 seconds), Compare predicted vs. actual reaction time, Improve productivity and efficiency, Hone time management skills, Develop intuitive decision-making

**Features:** macOS Compatibility

**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 Time Perception Test free?

Time Perception Test 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.*