# Mental Math Pro vs Dual N

Mental Math Pro and Dual N both sit at 4.7 stars, but that hides the real split: 100% of Mental Math Pro's written reviews are positive against 51% of Dual N's. Mental Math Pro also leads on iOS requirement (13.0 vs 15.0). Dual N's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (376 vs 116). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Mental Math Pro sells 1 one-off in-app purchase and Dual N sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Mental Math Pro against 4.6 for Dual N. Both are backed by a comparable volume of ratings — 116 and 376 respectively. Written reviews are what separate them: 100% of Mental Math Pro's written reviews are positive against 51% of Dual N's.

Mental Math Pro ships an update every 3 months, Dual N fortnightly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Mental Math Pro | Dual N |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (116 ratings)](https://appshunter.io/ios/app/mental-math-pro/id1517149074/reviews)** | [4.6 (376 ratings)](https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews) |
| Number of ratings | 116 | **376** |
| Positive reviews | **100.0% of reviews** | 50.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 199 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Peak Ridge](https://appshunter.io/developer/1493955013) | [GOKAKU SUPPLI, LIMITED LIABILITY CO.](https://appshunter.io/developer/1440310107) |

## What reviewers say

### Mental Math Pro

[App page](https://appshunter.io/ios/app/mental-math-pro/id1517149074)

This game offers a fun and interactive way to sharpen your math and cognitive skills. It challenges your math, memory, speed, and logic abilities, adapting to your progress to keep you engaged. Compete with others on the leaderboard and unlock your brain's full potential.

**Highlights:** Brain training exercises, Math and logic challenges, Memory and speed tests, Adaptive difficulty, Leaderboard competition, Suitable for all ages

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $1.99 | one-time |


### 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 Mental Math Pro free?

Mental Math Pro is free to download, with in-app purchases available.

### Is Dual N free?

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

### Which has better reviews, Mental Math Pro or Dual N?

Mental Math Pro is rated higher. Mental Math Pro averages 4.7 out of 5 from 116 ratings, while Dual N averages 4.6 from 376 ratings.

### Do Mental Math Pro or Dual N have ads?

Both Mental Math Pro and Dual N show ads.

### Which is updated more often, Mental Math Pro or Dual N?

Mental Math Pro ships an update every 3 months, and Dual N fortnightly. Most recently, Mental Math Pro was updated on October 29, 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.*