# N'Back

> Brain training app to improve sensory and working memory using N'Back exercises. (iPhone/iPad app by Yasuyoshi Ota.)

- Source: https://appshunter.io/ios/app/nback/id591320567 (this page in markdown: same URL + `.md`)
- Developer: [Yasuyoshi Ota](https://appshunter.io/developer/1500357652)
- Category: Education, Games, Trivia
- Price: Free with in-app purchases
- Rating: 4.00/5 from 3 App Store ratings · 10 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 6 MB
- Languages: American English, Japanese
- Released: 2013-01-09
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/nback/id591320567/reviews.md

## What is N'Back?

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
   :

## Key features

- Sensory memory improvement
- Working memory enhancement
- N'Back exercises
- Flash Mode
- Slow Mode
- Step Mode

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Add Levels (3'Back-10'Back) and Remove Ads | $2.99 | one-time |


## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/nback/id591320567/reviews.md

### 1/5 — 遊び方が分からない

*2025-01-13*

説明なくいきなり問題が始まるので、何を答えればいいのか分からない

### 5/5 — 単純だけどとても良い

*2022-01-19*

初めルールが分かりませんでしたが、すっかりハマっています。なにより、課金で広告を消せるのが素晴らしい。

### 1/5 — 慣れれば良いけど

*2021-03-05*

前提説明無さすぎて草

### 5/5 — Top marks

*2019-03-17*

Great for improving working memory. I liked it so much I upgraded to the paid version for more of a challenge. It was only $1.99 so why not!

### 5/5 — 使いやすい

*2019-01-17*

どこかのメンタリスト監修のアプリより使いやすい

### 4/5 — 単純だけど奥が深い

*2018-06-05*

1個前、2個前の形や色を答えるゲーム。
3〜10個前のレベルは課金だそうですが、そこまで賢くないので、無料で十分楽しめます。

### 5/5 — Best N-Back Game

*2015-05-24*

This is hands down the best n-back app for iOS. Scientifically proven to improve working memory, and it's completely free. This app is terrific in its simplicity.

### 5/5 — これはイイネ！

*2014-03-12*

使いやすいし単純だけど面白い。
でも、意外に難しい。

### 4/5 — 良い

*2013-07-02*

シンプルで良い感じです

### 2/5 — It's ok!

*2013-02-19*

It's really fast but at least you can adjust it! If your fast I recommend it for u! (:

## Frequently asked questions about N'Back

### What is N'Back?

N'Back is a cognitive training exercise designed to improve working memory and attention. It involves responding to stimuli that were presented 'N' steps earlier in a sequence.

### What learning methods does N'Back use?

N'Back utilizes the N'Back task, a scientifically recognized method for enhancing working memory. It offers Flash Mode, Slow Mode, and Step Mode to vary the training experience.

### How does N'Back track progress?

The app allows users to engage in sequences of increasing difficulty. Progress is implicitly tracked by the user's ability to successfully complete higher 'N' levels and longer sequences.

### Does N'Back offer certifications?

N'Back does not offer formal certifications. Its primary goal is to provide a tool for self-improvement and cognitive training.

### What devices does N'Back support?

N'Back is currently supported on iPhones, as indicated by the provided device compatibility information.

### What is the age rating for N'Back?

N'Back has an age rating of 4+, making it suitable for a wide range of users.

### Does N'Back have ads?

Yes, N'Back contains advertisements. This is typical for free applications that offer in-app purchases.

### When was N'Back last updated?

N'Back was last updated on December 19, 2025, indicating recent development and maintenance by the developer.

## Version history (last 5 releases)

### 1.7.8 — 2025-12-19

performance improvements

### 1.7.7 — 2025-10-04

performance improvement

### 1.7.6 — 2025-01-02

performance improvement

### 1.7.5 — 2024-02-26

performance improvement

### 1.7.4 — 2023-06-08

performance improvements

## Apps similar to N'Back

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Better Brain Lite](https://appshunter.io/ios/app/better-brain-lite/id307920888) | 3.6 (5) | Free | Education |
| [N-Back Challenge](https://appshunter.io/ios/app/n-back-challenge/id1524599079) | 4.7 (192) | Free | Education |
| [N-Back Training](https://appshunter.io/ios/app/n-back-training/id1627478554) | — | Free | Education |
| [Expercast](https://appshunter.io/ios/app/expercast/id1171945550) | 5.0 (6) | Free | Education |
| [Schulte table!](https://appshunter.io/ios/app/schulte-table/id951462483) | 4.6 (338) | Free | Education |
| [Dual N Back Brain Game](https://appshunter.io/ios/app/dual-n-back-brain-game/id6748565017) | 4.8 (4) | Free | Education |

## More apps by Yasuyoshi Ota

- [Kinetic Visual Acuity](https://appshunter.io/ios/app/kinetic-visual-acuity/id315045189)
- [Kinetic Visual Acuity Lite](https://appshunter.io/ios/app/kinetic-visual-acuity-lite/id319026009)
- [Amida Mikan](https://appshunter.io/ios/app/amida-mikan/id350563115)
- [Try Hairstyle Lite](https://appshunter.io/ios/app/try-hairstyle-lite/id350729683)
- [Amida Mikann](https://appshunter.io/ios/app/amida-mikann/id358691639)
- [2 Digit Multiplication](https://appshunter.io/ios/app/2-digit-multiplication/id395133470)

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 2026-08-31.*