N'Back Butterfly
Yasuyoshi Ota Games iPhoneiPadiPod touch
N'Back Butterfly is a free Games app for iPhone and iPad by Yasuyoshi Ota. Requires iOS 15.6. Updated August 26, 2026.
- Price
- Free
- on the App Store
- Size
- 9 MB
- Age 4+
- Updated
- Aug 26
- 2026 · v1.9.5
Screenshots
About N'Back Butterfly
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]
What’s new
Version 1.9.5 · Updated August 26, 2026
performance improvement
Play today's Queens puzzle
One queen in every row, column and color. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
App privacy
The developer, Yasuyoshi Ota, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
Used for: Third-Party Advertising
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Third-Party Advertising
Alternatives to N'Back Butterfly
Looking for apps like N'Back Butterfly? Here are 6 similar apps on the App Store.
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Sequence Cubes
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IQ Games N-back Brain Lite
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妖精ひこうくんれん中。
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GridLock: Number Puzzle
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DotCraft - Logic Puzzle Game
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Math Sprint Challenge
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| N'Back Butterfly | – | Free | August 26, 2026 | |
| Sequence Cubes | – | Free | Sep 11, 2024 | Compare |
| IQ Games N-back Brain Lite | – | Free | Aug 18, 2025 | Compare |
| 妖精ひこうくんれん中。 | – | Free | Jul 7, 2026 | Compare |
| GridLock: Number Puzzle | – | Free | Oct 10, 2026 | Compare |
| DotCraft - Logic Puzzle Game | – | Free | Apr 21, 2026 | Compare |
| Math Sprint Challenge | – | Free | Feb 15, 2026 | Compare |
Compare N'Back Butterfly with the top alternatives: ratings, updates, ASO score and keyword gaps →