# C2 Simon Task

> C2 Simon Task (iPhone/iPad app by Yasuyoshi Ota.)

- Source: https://appshunter.io/ios/app/c2-simon-task/id1635017276 (this page in markdown: same URL + `.md`)
- Developer: [Yasuyoshi Ota](https://appshunter.io/developer/1500357652)
- Category: Productivity, Education
- Price: $3.99
- Age rating: 4+
- Requires: iOS 15.6 · 1 MB
- Languages: American English, Japanese
- Released: 2022-07-26
- Data updated: 2026-08-25
- User reviews in markdown: https://appshunter.io/ios/app/c2-simon-task/id1635017276/reviews.md

## What is C2 Simon Task?

The iOS app "C2 Simon Task" is intended for those who are interested in psychology, those who are learning psychology, and those who are researching it.

* The effect of the Simon task appears as the difference in the time to recognize the direction indicated by the color in the following two cases, for example.
 ・ When a figure of the color indicating the left is displayed on the left side (compatible)
 ・ When a figure of the color indicating the right is displayed on the left side (incompatible)
 
The purpose of this app is to be able to see the effect of the Simon task numerically.

The iOS app "C2 Simon Task" records the response time of a simon task (task conflict) in milliseconds.
Response time is the time from when the task is displayed to when the answer button is touched (touchdown).

The recorded data can be output to a CSV file and read into a spreadsheet application such as Excel.

You can change the trial interval, the left and right colors, the shape of the shape, the size of the shape, the brightness of the background, and so on.

[details]
https://app.brain-workout.org/simontask-e/


## Version history (last 4 releases)

### 1.0.3 — 2026-08-20

performance improvements

### 1.0.2 — 2025-10-15

performance improvements

### 1.0.1 — 2023-06-17

performance improvements

### 1.0 — 2022-07-26

No release notes.

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## More apps by Yasuyoshi Ota

- [Kinetic Visual Acuity](https://appshunter.io/ios/app/kinetic-visual-acuity/id315045189)
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All apps by Yasuyoshi Ota: https://appshunter.io/developer/1500357652

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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 2026-08-25.*