# NBack³ vs IQify

The clearest difference is in-app purchases: IQify at none against NBack³'s 1. IQify also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. NBack³ sells 1 in-app purchase, starting at $0.49 per month. IQify asks for nothing beyond the download.

## The numbers

| Metric | NBack³ | IQify |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 32 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Taiki Nishimura](https://appshunter.io/developer/1780302048) | [Joseph Cowles](https://appshunter.io/developer/1787998690) |

## What reviewers say

### NBack³

[App page](https://appshunter.io/ios/app/nback-memory-training-game/id6745750227)

This brain training app uses the scientifically proven Dual N-Back method to enhance cognitive functions like working memory, focus, and decision-making. It offers adjustable difficulty levels and tracks progress with a visually engaging interface.

**Highlights:** Dual N-Back method, Adjustable difficulty (n=1-5), Enhances working memory, Improves inhibitory control, Develops attention skills, Progress tracking, Streak bonus system

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.49 | per month |


### IQify

[App page](https://appshunter.io/ios/app/iqify/id6764219440)

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

**In-app purchases:** none


## Frequently asked questions

### Is NBack³ free?

NBack³ is free to download, with in-app purchases available.

### Is IQify free?

IQify is free to download, with no in-app purchases.

### Do NBack³ or IQify have ads?

NBack³ shows ads; IQify does not.

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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.*