# Dual N-Back: Brain-Training — Boost Your Working Memory & IQ

> Brain training game to enhance working memory and cognitive abilities. (iPhone/iPad app by GOKAKU SUPPLI, LIMITED LIABILITY CO..)

- Source: https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948 (this page in markdown: same URL + `.md`)
- Developer: [GOKAKU SUPPLI, LIMITED LIABILITY CO.](https://appshunter.io/developer/1440310107)
- Category: Games, Productivity, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 4.60/5 from 335 App Store ratings · 109 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 191 MB
- Languages: American English
- Released: 2021-08-05
- Data updated: 2026-09-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews.md

## What is Dual N?

Dual NBack – Brain Training to Improve Memory

Dual NBack is a fun and challenging brain game designed to strengthen your working memory. Set goals, get reminders, and climb the global leaderboards as you sharpen your mind!

What Is Dual NBack?

Dual NBack is a memory-training game that presents audio (letters) and visual (positions) sequences simultaneously. Research suggests that consistent play may enhance your working memory—the ability to hold and process information briefly—and also boost short-term recall.

How to Play

The game starts at Level N=2, where you need to remember the position (square) and the sound (letter) from two turns back.

If the current position or sound matches what was shown two turns ago, tap the corresponding button.

Strong performance automatically raises your level, but you can manually adjust the difficulty whenever you like.

Key Features

Customizable Settings

Tailor your training: tweak the N-value (number of turns to recall), the interval between sounds/blocks, and session length as you see fit.

Reminders & Goals

Set daily or weekly targets and enable notifications to help you practice consistently.

Global Leaderboards

Compare your scores with players worldwide and see how you rank as you improve.

Share Function

Post your results on social media or messaging apps to challenge your friends and family.

Multilingual Support

Currently offered in English and Japanese, with more languages on the way.

Why Train Your Working Memory?
Working memory stores information for a few seconds to minutes, enabling you to make decisions, perform calculations, or tackle other cognitive tasks. Playing Dual NBack regularly can help strengthen this mental capacity, potentially improving focus, concentration, and overall brain agility.

Ad-Free Experience with Dual NBack Pro
Enjoy a 3-day free trial of Dual NBack Pro to train with no ads or interruptions.

If you choose to purchase Dual NBack Pro, the payment is charged to your iTunes account.

Renewal fees are charged within 24 hours before the current subscription period ends.

You can cancel your subscription anytime:

Go to Settings → tap your name → Subscriptions → locate and cancel the subscription you want to end.

If you don’t cancel before the trial ends, the paid subscription automatically starts.

Privacy Policy: https://goukakuappli.co.jp/privacy
End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Summary

Strengthen Your Mind: Give your working memory a proven workout.

Adapt the Difficulty: Start at N=2 or set your preferred challenge level.

Stay Motivated: Leverage reminders, goals, and leaderboards to keep pushing your limits.

Go Pro for No Ads: Take advantage of a 3-day free trial and upgrade to an ad-free training experience.

Download Dual NBack now and take your cognitive performance to a new level!

## Key features

- Working memory training
- Customizable difficulty (N-value, interval, session length)
- Goal setting and reminders
- Global leaderboards
- Multilingual support
- Ad-free Pro version

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| NBack Monthly Subscription | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pass | $12.99 | one-time |


## Recent user reviews (10 of 109)

All indexed reviews: https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews.md

### 5/5 — New Mode suggestion

*2026-07-20*

This app is really great, but I want a mode where only the sound or the visuals play, a mode called single n back

### 5/5 — Challenging, and genuinely helpful tool

*2026-06-22*

Dual N-Back can be done by anyone in their head by repeating sound and visuals from a few moments prior, but this is an app that allows you to train your memory In a similar way, and notifies you to stay consistent, it doesn’t flood you with ads and it’s an admirably simple and effective tool that’s does its job efficiently. The only thing is the tutorial for some can be lacking a bit of explanation and detail, I think it would be a bit better if they clarified that each sound and position is one turn (or N=1), and the number N is the amount of turns ago that you’re required to remember and respond to in the current turn.

**Developer response:** Thank you for the thoughtful and detailed review! 😊

We’re really happy to hear that you find Dual N-Back effective and helpful for consistent memory training.

Your explanation about clarifying each sound/position as one turn, and N as the number of turns back to remember, is very useful. We agree this could make the tutorial easier to understand, especially for new users! We’ll keep this in mind as we improve the onboarding. 🤩

### 5/5 — Reviewing dual

*2026-06-12, version 2.18.14*

It is great memory excercise but you should add different levels not just this one

### 4/5 — It’s not bad

*2026-06-06, version 2.17.27*

But the ads are annoys me before I want to grind the game more

### 5/5 — With school

*2026-06-03*

The best memory game i have ever played, helped me to get better grades , and helped me with my adhd

**Developer response:** Thank you so much for your kind words! 😊

We're really happy to hear that you've enjoyed the training and found it helpful in your studies. Stories like yours mean a lot to our small team and motivate us to keep improving the app.

Thanks again for sharing your experience, and we wish you all the best with school! 🧠💪

### 3/5 — Very challenging

*2026-05-25*

Seems like it's growing new neural connections. Sure beats candy crush or short form content

**Developer response:** Thank you for the review! 😊

We're glad you're enjoying the challenge and finding the training more engaging than passive forms of entertainment. That's exactly the kind of experience we're hoping to create.

If you have any additional feedback or suggestions, we'd love to hear them at eigomonogatari@frecre.com
. Thanks for giving the app a try! 🧠💪

### 4/5 — 頭には良いのかもしれない

*2026-04-05, version 2.17.12*

レベル2の時点で頭が真っ白になる人なので、そこから先の効果は全くわからない

### 3/5 — ゲームできません

*2026-04-01, version 2.17.12*

スタートボタンを押しても反応なしでゲームできません。
改善お願いします！

毎日のルーティンだったのに、ここ数日出来ずに悲しい。

### 3/5 — App有問題

*2026-04-01, version 2.17.12*

開始遊戲position and sound都是反黑無法按下，請速解決不然只好退訂，麻煩了

### 5/5 — 改善

*2026-03-31, version 2.17.12*

エラーの改善ありがとうございます！！

## Frequently asked questions about Dual N

### What does the Dual N-Back app do?

The Dual N-Back app is a brain game designed to strengthen your working memory. It presents simultaneous audio (letters) and visual (positions) sequences, requiring you to recall information from a specified number of turns back. Consistent play may help improve short-term recall, focus, and concentration.

### What are the key features of Dual N-Back?

Key features include customizable settings like the N-value (number of turns to recall), interval between stimuli, and session length. It also offers goal setting with reminders, global leaderboards to compare scores, social sharing options, and multilingual support. A Pro version provides an ad-free experience.

### How much does Dual N-Back cost?

The app is free to download and play, but offers an optional 'Dual N-Back Pro' subscription for an ad-free experience. This Pro version includes a 3-day free trial. Payment for the subscription is charged to your iTunes account, and renewals occur within 24 hours before the current period ends. You can cancel anytime.

### What is working memory and why train it?

Working memory is the capacity to hold and process information briefly, enabling tasks like decision-making and calculations. Training working memory through games like Dual N-Back can potentially improve focus, concentration, and overall brain agility.

### How do I play Dual N-Back?

The game starts at Level N=2, where you must remember the position and sound from two turns ago. If the current stimuli match what was presented two turns prior, you tap the corresponding button. Successful performance increases the difficulty level, but you can also manually adjust it.

## Version history (last 5 releases)

### 2.18.22 — 2026-07-19

New in this update:
• Added Arabic language support.
• Fixed an issue where the inappropriate-name warning could appear incorrectly in certain languages.
• Improved the wording of “Miss” and “Incorrect” feedback labels.
• Other bug fixes and improvements.

### 2.18.19 — 2026-07-11

New in this update:
• Spanish language support is now available.
• Feedback timing has been improved for a smoother training experience.
• Notification settings now show the correct on/off status.
• Other bug fixes and improvements.

### 2.18.14 — 2026-06-11

New in this update:
• Fixed an issue where reminder notifications showed text keys instead of the correct localized messages.
• Reminder notifications now display properly in each supported language.

### 2.18.12 — 2026-06-10

New in this update:
• Improved reminder timing so prompts feel more helpful and less intrusive.
• Updated reminder messages with a more supportive, coach-like tone.
• Separated daily reminders and comeback reminders in settings for easier control.
• Added Vietnamese language support for the game.
• Localized reminder messages and made various localization improvements.

### 2.17.27 — 2026-05-20

New in this update:
• Improved feedback timing so training feels clearer between rounds.
• Added Korean language support for both the tutorial and in-game text.
• Removed the ads announcement popup for a smoother experience.
• Various localization and UI improvements.

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All apps by GOKAKU SUPPLI, LIMITED LIABILITY CO.: https://appshunter.io/developer/1440310107

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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 2026-09-03.*