N'Back Butterfly

N'Back Butterfly
Developer: Yasuyoshi Ota
Category: Games: Puzzle
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N'Back Butterfly Summary

N'Back Butterfly is a ad-supported iOS app in Puzzle by Yasuyoshi Ota. Released in Apr 2014 (12 years ago). Store metadata: updated Oct 27, 2025.

Store info: Last updated on App Store on Oct 27, 2025 .

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App Details

Store ID: 853507894
First Released: 2014-04-08
Store Last Updated: 2025-10-27
In-App Purchases: No
Ads: Yes
Website: app.brain-workout.org

App Store

Crawl Status: Success
AppGoblin First Crawled: 2021-02-06
AppGoblin Last Crawled: 2026-05-27

Ads & App-Ads.txt

Ads.txt Last Crawled: 2026-03-03
Ads.txt Crawl Status: Success

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App not yet analyzed for SDKs.

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Screenshots

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App Description

Forget about forgetfulness!
Improve your memory!
Improve Working Memory using N'Back Butterfly.

The n-back task is a continuous performance task that is commonly used as an assessment in cognitive neuroscience to measure a part of working memory. The n-back was introduced by Wayne Kirchner in 1958.
[quoted from Wikipedia　2014-04-02]