# N'Back vs MindSpan Memory Booster

The clearest difference is review sentiment: N'Back at 70% against MindSpan Memory Booster's 0%. MindSpan Memory Booster's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and iOS requirement there is nothing between them.

Both are free to download. N'Back sells 1 one-off in-app purchase. MindSpan Memory Booster asks for nothing beyond the download.

N'Back ships an update every 9 months, MindSpan Memory Booster fortnightly. The most recent releases landed on September 11, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | N'Back | MindSpan Memory Booster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/nback/id591320567/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **70.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 5 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [Bothina Elzoobi](https://appshunter.io/developer/991489487) |

## What reviewers say

### N'Back

[App page](https://appshunter.io/ios/app/nback/id591320567)

Enhance sensory and working memory with this brain training application. It offers various modes to test your ability to recall sequences of numbers, progressing through different 'N' levels.

**Highlights:** Sensory memory improvement, Working memory enhancement, N'Back exercises, Flash Mode, Slow Mode, Step Mode

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

**In-app purchases (1)**

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


### MindSpan Memory Booster

[App page](https://appshunter.io/ios/app/mindspan-memory-booster/id1111781150)

Train your working memory with a simple yet challenging game. Observe moving shapes and recall their details like color and pattern to progress. Improve your cognitive skills essential for learning and focus.

**Highlights:** Observe and recall moving geometric shapes, Identify shape, color, and pattern, Increasing difficulty with speed and complexity, Trains working memory and cognitive skills, Focuses on fluid intelligence and learning ability

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

**In-app purchases:** none


## Frequently asked questions

### Is N'Back free?

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

### Is MindSpan Memory Booster free?

MindSpan Memory Booster is free to download, with no in-app purchases.

### Do N'Back or MindSpan Memory Booster have ads?

N'Back shows ads; MindSpan Memory Booster does not.

### Which is updated more often, N'Back or MindSpan Memory Booster?

N'Back ships an update every 9 months, and MindSpan Memory Booster fortnightly. Most recently, N'Back was updated on September 11, 2026 and MindSpan Memory Booster on August 15, 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.*