N'Back
Education
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Improve Sensory Memory & Working Memory using N'Back.
◆Flash Mode / Slow Mode / Step Mode
Tap the number key matches the one from N steps earlier in the sequence.
In 1'Back
1 task1: count & memorize
2 task2: count & memorize
3 __keyboard__: answer for task1
4 task3: count & memorize
5 __keyboard__: answer for task2
6 task4: count & memorize
:
In 2'Back
1 task1: count & memorize
2 task2: count & memorize
3 task3: count & memorize
4 __keyboard__: answer for task1
5 task4: count & memorize
6 __keyboard__: answer for task2
7 task5: count & memorize
:
performance improvements
The developer, Yasuyoshi Ota, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yasuyoshi Ota
- Size
- 6.5 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Add Levels (3'Back-10'Back) and Remove Ads $2.99
- Copyright
- © 2025 y.ota