# Stroopy Duck — Psychological Stroop Effect!

> Psychological Stroop Effect test game for reaction time and cognitive processing. (iPhone/iPad app by Daniel Colnaghi.)

- Source: https://appshunter.io/ios/app/stroopy-duck/id718617223 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Colnaghi](https://appshunter.io/developer/543689206)
- Category: Games, Entertainment, Action, Casual
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 130 MB
- Languages: English
- Released: 2013-10-10
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/stroopy-duck/id718617223/reviews.md

## What is Stroopy Duck?

Stroopy Duck is a game that is based on the psychological test John Ridley Stroop, which aims to test the action and reaction of the person. The effect is named after his discovery, “Stroop”.

Throughout the game you will see a color that differs from the color expressed by the semantic meaning (eg the word “red” displayed in blue).

In the game you may suffer a delay in processing the color of the word, and this is the real purpose of the test.

This game was named “Stroopy Duck” as a tribute to its discoverer =D

I hope that you enjoy it! Please write us a review and let us know if you like it, so we can add more levels for you :)

## Key features

- Stroop effect gameplay
- Tests action and reaction
- Color and word conflict
- Cognitive processing challenge
- Engaging psychological test

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/stroopy-duck/id718617223/reviews.md

### 4/5 — Funny Game

*2013-10-11*

How about we have more levels?

### 1/5 — Waste of an idea

*2013-10-11*

What?! One level, completed it first time around, am i missing something is this game for preschool?! Download it and delete, the one star i rated is 2 stars too many

### 3/5 — Funnnn

*2013-10-11*

Its so fun, but can there be more levels with harder things? Really fun and it made my brain work

## Frequently asked questions about Stroopy Duck

### What is Stroopy Duck?

Stroopy Duck is a game based on the psychological Stroop Effect test. It measures your brain's action and reaction time by presenting words in colors that conflict with their semantic meaning.

### How does Stroopy Duck work?

The game displays a word (e.g., 'red') in a different color (e.g., blue). You need to identify the color the word is displayed in, not the word itself, to test your processing speed.

### Is Stroopy Duck free to play?

Yes, Stroopy Duck is completely free to download and play. It does not have any in-app purchases or advertisements.

### What devices can I play Stroopy Duck on?

Stroopy Duck is available for iPhone, iPad, and iPod devices. It is designed for iOS users.

### What is the age rating for Stroopy Duck?

Stroopy Duck has an age rating of 4+. This makes it suitable for a wide range of players interested in cognitive challenges.

### How often is Stroopy Duck updated?

The game was last updated on March 29, 2018, with version 2.1.1. While updates have not been frequent recently, the core gameplay remains a stable cognitive test.

### Does Stroopy Duck have multiplayer?

Stroopy Duck is designed as a single-player experience to focus on individual cognitive performance and reaction time. There is no multiplayer mode available.

### Can I play Stroopy Duck offline?

The description does not specify offline play capabilities. However, as a single-player cognitive test game, it is likely playable without an internet connection.

## Version history (last 5 releases)

### 2.1.1 — 2018-03-29

This app has been updated by Apple to display the Apple Watch app icon.

Added Achievements!
Minor bug fixes.

### 2.1 — 2017-08-15

- More option, main Menu.
- Perfomance improvements.
- Level balance.

### 2.0 — 2017-07-31

- Added some levels.
- Gameplay improvements.
- Credits Screen.


Let us know if you like the Stroop Duck 2.0! so we can release more levels!

### 1.1 — 2013-11-11

Bug Fixes:
iPod 3G and iPhone 3G and 4 (background screen).
NowSuport iPad.

News:
Now the Stroopy Duck also for iPad!
We are working with the creation of new game levels, coming soon!!!

### 1.0 — 2013-10-09

No release notes.

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## More apps by Daniel Colnaghi

- [Coding Dojo](https://appshunter.io/ios/app/coding-dojo/id911650910)
- [Dog Inc.](https://appshunter.io/ios/app/dog-inc/id1058369389)
- [The Movies - I Must Watch](https://appshunter.io/ios/app/the-movies-i-must-watch/id1317930052)
- [Cake Tower Game](https://appshunter.io/ios/app/cake-tower-game/id1378570714)
- [Hour Tracker Cold Mass](https://appshunter.io/ios/app/hour-tracker-cold-mass/id1386965643)

All apps by Daniel Colnaghi: https://appshunter.io/developer/543689206

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*