# Dual N vs N

Dual N and N are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Dual N sells 2 in-app purchases, starting at $3.99 per month and N sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Dual N | N |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/dual-n-back-memory-trainer/id6759211886/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 days |
| Monetization | Freemium | — |
| Size | 27 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Konstanty Koszewski](https://appshunter.io/developer/1871696981) | [Toru Fukui](https://appshunter.io/developer/1888097145) |

## What reviewers say

### Dual N

[App page](https://appshunter.io/ios/app/dual-n-back-memory-trainer/id6759211886)

This app offers structured cognitive training to enhance working memory and focus. It features adaptive challenges, detailed session metrics, and long-term progress tracking. Users can customize their training environment and follow guided plans for measurable improvements.

**Highlights:** Adaptive Dual N-Back training, Session metrics and analytics, Long-term progress charts, Guided training plans, Customizable training environment, Low-distraction UI

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dual N-back Monthly Premium | $3.99 | per month |
| Dual N-back Yearly Premium | $29.99 | per year |


### N

[App page](https://appshunter.io/ios/app/n-back-brain-trainer/id6761675343)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is Dual N free?

Dual N is free to download, with in-app purchases available.

### Is N free?

N is free to download, with in-app purchases available.

### Do Dual N or N have ads?

Both Dual N and N show ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*