# Memory Board vs Dual N

The clearest difference is review sentiment: Memory Board at 100% against Dual N's 51%. Memory Board also leads on in-app purchases (none vs 2) and ads (none vs shown). Dual N's advantage is price (Free vs $2.99) and ratings volume (376 vs 5). On device support there is nothing between them.

Dual N is free to download; Memory Board costs $2.99 up front. Dual N sells 2 in-app purchases, starting at $0.99 per month. Memory Board asks for nothing beyond the download.

Memory Board holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Dual N has 376 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Memory Board's written reviews are positive against 51% of Dual N's.

Memory Board ships an update every 2 months, Dual N fortnightly. The most recent releases landed on October 6, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Memory Board | Dual N |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/memory-board/id1544733994/reviews)** | [4.6 (376 ratings)](https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews) |
| Number of ratings | 5 | **376** |
| Positive reviews | **100.0% of reviews** | 50.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 18 MB | 199 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [5Path LLC](https://appshunter.io/developer/1544734236) | [GOKAKU SUPPLI, LIMITED LIABILITY CO.](https://appshunter.io/developer/1440310107) |

## What reviewers say

### Memory Board

[App page](https://appshunter.io/ios/app/memory-board/id1544733994)

Enhance your short-term memory and concentration with this game. Repeat color sequences on a grid, with increasing difficulty. Compete for a spot on the global leaderboard.

**Highlights:** Concentration training, Short-term memory challenges, Adjustable grid size, Increasing difficulty levels, Global leaderboard, Color sequence repetition

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

**In-app purchases:** none


### Dual N

[App page](https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948)

This app is a brain game designed to improve working memory and cognitive skills through a challenging memory-training exercise. It offers customizable difficulty, goal setting, and global leaderboards to track progress. An ad-free experience is available via a subscription.

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

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NBack Monthly Subscription | $0.99 | per month |
| Lifetime Pass | $12.99 | one-time |


## Frequently asked questions

### Is Memory Board free?

Memory Board costs $2.99, with no in-app purchases.

### Is Dual N free?

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

### Which has better reviews, Memory Board or Dual N?

Memory Board is rated higher. Memory Board averages 5.0 out of 5 from 5 ratings, while Dual N averages 4.6 from 376 ratings.

### Do Memory Board or Dual N have ads?

Dual N shows ads; Memory Board does not.

### Which is updated more often, Memory Board or Dual N?

Memory Board ships an update every 2 months, and Dual N fortnightly. Most recently, Memory Board was updated on October 6, 2026 and Dual N on October 27, 2026.

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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.*