Great Learning Game!
My score was a lot different without the effect!

Archived App
This is an archived listing of the app previously available on the App Store.This game challenges your reaction time by presenting colored boxes and requiring you to tap the button matching the box's color. It subtly teaches the principles of the Simon Effect, demonstrating how stimulus and response location influence performance in everyday tasks.
1.2
November 4, 2014
This app has been updated by Apple to display the Apple Watch app icon. App video demonstrates how the app works and some real world examples.
MoreThe Simon Effect game presents a colored box and requires you to tap the button that matches the box's color. It's designed to illustrate the cognitive phenomenon known as the Simon Effect.
The game demonstrates how the spatial relationship between a stimulus (the colored box) and a response (tapping a button) affects performance, a principle applicable to operating devices like phones, ovens, and cars.
Gameplay involves tapping the button that shares the same name as the color of the box displayed. The challenge arises because the box's position can sometimes be misleading.
Yes, Simon Effect is available for free, as indicated by its 'Free' price listing.
Simon Effect is supported on iPhone, iPad, and iPod devices.
The latest version, 1.2, was released on November 4, 2014. The app has not received updates since then.
Simon Effect has an age rating of 4+, making it suitable for young players and above.
The provided data does not specify whether Simon Effect contains advertisements. Further information would be needed to confirm the presence of ads.