Test your cognitive abilities with a game inspired by the Stroop effect. Quickly identify matching colors, arrow directions, or true/false math equations under time pressure. Challenge your brain to process conflicting information and achieve high scores.
Summarized from real user reviews of One Brain. Based on 296 reviews and a 4.4/5 average, it highlights the 3 positives and 3 negatives reviewers mention most about this game.
2.10
August 8, 2026
• Added a new game mode: English words!
$0.99
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We checked the code carefully and could not detect any bug in the game.
3 issues
Incorrect registering of correct answers
Crashes and freezes on certain devices
3 requests
Adjustable difficulty levels
More game modes and variations
One Brain is a mobile game inspired by the Stroop effect, a psychological test. It challenges your brain to process conflicting visual information, such as identifying the color of a word when the word itself spells a different color, or verifying math equations.
The app features three distinct game modes: 'Colors,' where you determine if the word's text color matches the word itself; 'Arrows,' testing if an arrow points in the direction it states; and 'Numbers,' requiring you to verify if a math equation is true or false.
Yes, the app is free to download and play. It does include advertisements and offers in-app purchases, which may provide benefits or remove ads.
The primary goal is to score as high as possible by correctly answering the challenges presented in each game mode before time runs out. It's designed to test your cognitive speed and accuracy under pressure.
This app is designed for anyone interested in testing their cognitive abilities, improving reaction time, and engaging in a fun, challenging brain training exercise. It's particularly appealing to those interested in psychology and cognitive science.
