# StroopEffect2 vs Kids Transport

The clearest difference is price: Kids Transport at Free against StroopEffect2's $2.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Kids Transport is free to download; StroopEffect2 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | StroopEffect2 | Kids Transport |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | — |
| Monetization | Paid | — |
| Size | 2 MB | 52 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [Hoang Ngan Nguyen Song](https://appshunter.io/developer/1528762677) |

## What reviewers say

### StroopEffect2

[App page](https://appshunter.io/ios/app/stroopeffect2/id1050388935)

This app demonstrates the psychological phenomenon known as the Stroop effect. It presents a time-trial game where users must identify the color of words, even when the word itself names a different color. It's a fun way to explore cognitive processing and reaction times.

**Highlights:** Stroop effect demonstration, Time trial game mode, Cognitive processing experiment, Reaction time measurement, Educational psychology tool

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

**In-app purchases:** none


### Kids Transport

[App page](https://appshunter.io/ios/app/kids-transport/id6756574142)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StroopEffect2 free?

StroopEffect2 costs $2.99, with no in-app purchases.

### Is Kids Transport free?

Kids Transport is free to download, with no in-app purchases.

### Do StroopEffect2 or Kids Transport have ads?

Neither StroopEffect2 nor Kids Transport shows ads.

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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.*