# GreenRed vs Stroop Challenge Go

The clearest difference is iOS requirement: GreenRed at 13.2 against Stroop Challenge Go's 15.0. On price, ads, in-app purchases and device support 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 | GreenRed | Stroop Challenge Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/greenred/id1517335347/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Free | — |
| Size | 10 MB | 1 MB |
| Requires iOS | **13.2** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hartti Suomela](https://appshunter.io/developer/1517335346) | [晓 郭](https://appshunter.io/developer/1895645928) |

## What reviewers say

### GreenRed

[App page](https://appshunter.io/ios/app/greenred/id1517335347)

This game challenges your brain by presenting colored words that may not match their text. Test your reaction time and focus by quickly identifying the print color. Customize session length, color palettes, and languages to enhance your cognitive training.

**Highlights:** Stroop effect-based gameplay, Customizable session length, Multiple color palettes, Multilingual support (6 languages), Reaction time graphs and statistics, High score tracking

**In-app purchases:** none


### Stroop Challenge Go

[App page](https://appshunter.io/ios/app/stroop-challenge-go/id6773266246)

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

**In-app purchases:** none


## Frequently asked questions

### Is GreenRed free?

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

### Is Stroop Challenge Go free?

Stroop Challenge Go is free to download, with no in-app purchases.

### Do GreenRed or Stroop Challenge Go have ads?

Neither GreenRed nor Stroop Challenge Go 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.*