# Brain Sharp vs Dual N

The clearest difference is ads: Dual N at none against Brain Sharp's shown. Dual N also leads on update cadence (weekly vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Brain Sharp sells 1 one-off in-app purchase and Dual N sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Brain Sharp ships an update every 4 months, Dual N weekly. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Brain Sharp | Dual N |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (24 ratings)](https://appshunter.io/ios/app/brain-sharp-brain-training/id1498294537/reviews)** | — |
| Number of ratings | **24** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 1 MB |
| Requires iOS | **15.6** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [世恬 颜](https://appshunter.io/developer/1448144845) | [FARUQ BATULA](https://appshunter.io/developer/6782611713) |

## What reviewers say

### Brain Sharp

[App page](https://appshunter.io/ios/app/brain-sharp-brain-training/id1498294537)

Enhance memory, focus, and mental math skills with engaging exercises. This app supports academic and professional growth, improves daily life clarity, and helps maintain long-term brain health through scientifically inspired games.

**Highlights:** Memory enhancement exercises, Focus and concentration games, Mental math challenges, Cognitive decline slowing, Unlimited adaptive levels, Dual N-Back training

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Dual N

[App page](https://appshunter.io/ios/app/dual-n-back-brain-training/id6785411605)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Elite Viber Pro — Monthly | $1.99 | per month |
| Elite Viber Pro — Yearly | $11.99 | per year |
| Elite Viber Pro — Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Brain Sharp free?

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

### Is Dual N free?

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

### Do Brain Sharp or Dual N have ads?

Brain Sharp shows ads; Dual N does not.

### Which is updated more often, Brain Sharp or Dual N?

Brain Sharp ships an update every 4 months, and Dual N weekly. Most recently, Brain Sharp was updated on September 30, 2026 and Dual N on October 16, 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.*