# iStroopChallenge — Brain Training Color Game

> Psychological test game for cognitive speed and brain training. (iPhone/iPad app by Pure Hunger Labs, LLC.)

- Source: https://appshunter.io/ios/app/istroopchallenge/id6755783575 (this page in markdown: same URL + `.md`)
- Developer: [Pure Hunger Labs, LLC](https://appshunter.io/developer/1840531947)
- Category: Games, Puzzle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: English
- Released: 2025-12-01
- Data updated: 2026-07-17
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/istroopchallenge/id6755783575/reviews.md

## What is iStroopChallenge?

STROOP CHALLENGE - Train Your Brain, Challenge Your Friends

  Experience the classic psychological test turned into an addictive mobile game! Test your cognitive processing speed with a simple but surprisingly difficult task: identify the INK COLOR of displayed words,
  not what the word says.

  When "RED" appears in blue ink, your brain fights its natural instinct to read. This mental conflict makes Stroop Challenge engaging and effective for brain training!

  Features:
  - Timed & Endless modes
  - Adaptive difficulty
  - Multiplayer challenges
  - Achievements & leaderboards
  - Color blind accessibility
  - 5 beautiful themes
  - Detailed statistics
  - Completely free!

## Key features

- Timed and endless game modes
- Adaptive difficulty settings
- Multiplayer challenges
- Achievements and leaderboards
- Color blind accessibility
- Multiple themes
- Detailed statistics

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/istroopchallenge/id6755783575/reviews.md

### 5/5 — Amazing challenge

*2026-02-07*

This game was a little tricky but once I got the hang of it  it was funn.. 😛

## Frequently asked questions about iStroopChallenge

### What is iStroopChallenge?

iStroopChallenge is a mobile game based on the classic psychological Stroop test. It challenges players to identify the ink color of words, not the word itself, to train cognitive processing speed.

### How do you play iStroopChallenge?

The core gameplay involves identifying the color of the ink a word is written in. For example, if the word 'RED' is written in blue ink, you must select 'blue', not 'red'.

### Does iStroopChallenge have ads?

No, iStroopChallenge is completely free and does not contain advertisements.

### Can I play iStroopChallenge offline?

The description does not specify offline play capabilities. Multiplayer challenges would require an internet connection.

### What game modes are available in iStroopChallenge?

iStroopChallenge offers both Timed and Endless modes, allowing for different play styles and challenges.

### Is iStroopChallenge suitable for colorblind individuals?

Yes, iStroopChallenge includes color blind accessibility features to ensure a wider range of users can enjoy the game.

### How often is iStroopChallenge updated?

The latest version is 1.0.6, last updated on December 14, 2025. Update frequency is not explicitly stated but suggests regular maintenance.

### What devices support iStroopChallenge?

iStroopChallenge is available on iPhone, iPad, and iPod devices.

## Version history (last 5 releases)

### 1.0.7 — 2026-07-14

Reaction Time Tracking
  See how fast your brain really is. Every answer is now timed individually, and your average reaction time
  is displayed on the game-over screen, quick stats, and detailed statistics view. Track your cognitive
  speed over time and watch yourself improve.

  Difficulty Presets
  Choose your challenge level. Easy mode uses 4 colors for a relaxed experience, Normal ramps up to 6, and
  Hard pushes you to 8 colors including Pink and Cyan. Select your difficulty before each round with the new
   preset selector.

  Interactive Tutorial
  New to the Stroop Test? A guided 3-page tutorial walks first-time players through the rules and mechanics.
   Tap the help button anytime to replay it.

  Dynamic Light Theme
  Light mode now adapts to your active color theme instead of using a fixed palette, giving you a polished
  look no matter which theme you choose.

  Accessibility Overhaul
  We've made Stroop Challenge more accessible than ever:
  - Full VoiceOver support with semantic labels and live announcements on every interactive element
  - System dark and light mode support
  - Reduced Motion integration — animations respect your system setting, or choose your own speed including
  fully off
  - Sound captions display on-screen text when sound effects play
  - Three color-blind modes (protanopia, deuteranopia, tritanopia) add unique shape icons to buttons so
  gameplay never relies on color alone

  Performance Improvements
  The game view has been rebuilt from the ground up for smoother gameplay. Granular widget rebuilds
  eliminate unnecessary screen updates, background gradient animations use efficient rendering, and
  achievement checking is now data-driven for faster results.

  Timed with Bonus Mode Update
  Wrong answers now subtract 2 seconds in Timed with Bonus mode, making it more strategic. Think fast, but
  think right.

  Bug Fixes
  - Fixed speed bonus calculation that was using incorrect round duration
  - Fixed animation multiplier issue
  - General stability improvements

### 1.0.6 — 2025-12-14

NEW FEATURES
  • Three game modes: Timed (fixed 30s), Timed+Bonus (dynamic time), and Endless
  • Timed+Bonus: +1-2 seconds for correct answers, -2 seconds for wrong answers
  • Global Game Center leaderboards and achievements

  IMPROVEMENTS
  • Removed mock local leaderboard (Game Center only)
  • Enhanced UI for mode selection
  • Better error handling for Game Center
  • Performance optimizations

  BUG FIXES
  • Fixed timer to ensure strictly 30-second duration in Timed mode
  • Improved Game Center authentication

### 1.0.5 — 2025-12-10

• Fixed timer to ensure fair timed challenges
  • Improved game mode selection UI
  • Enhanced leaderboard experience

### 1.0.3 — 2025-12-04

GameCenter integration

### 1.0 — 2025-12-02

No release notes.

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## More apps by Pure Hunger Labs, LLC

- [SteampunkTicTacToe](https://appshunter.io/ios/app/steampunktictactoe/id6754201410)
- [TileTap Challenge](https://appshunter.io/ios/app/tiletap-challenge/id6756543774)
- [Smart Shopping Scanner](https://appshunter.io/ios/app/smart-shopping-scanner/id6757192607)
- [Answered List](https://appshunter.io/ios/app/answered-list/id6761426687)

All apps by Pure Hunger Labs, LLC: https://appshunter.io/developer/1840531947

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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 2026-07-17.*