# Strong Mind Puzzles vs Dual N

The clearest difference is price: Dual N at Free against Strong Mind Puzzles's $29.99. Dual N also leads on rating (4.6 vs 3.8) and ratings volume (380 vs 11). Strong Mind Puzzles's advantage is ads (none vs shown). On review sentiment, in-app purchases and device support there is nothing between them.

Dual N is free to download; Strong Mind Puzzles costs $29.99 up front. Strong Mind Puzzles 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.

Dual N holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Dual N has 380 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 45% of Strong Mind Puzzles's written reviews are positive against 51% of Dual N's.

Strong Mind Puzzles ships an update every 5 weeks, Dual N fortnightly. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Strong Mind Puzzles | Dual N |
| --- | --- | --- |
| Price | $29.99 | **Free** |
| Rating | [3.8 (11 ratings)](https://appshunter.io/ios/app/strong-mind-puzzles/id396769075/reviews) | **[4.6 (380 ratings)](https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews)** |
| Number of ratings | 11 | **380** |
| Positive reviews | 45.0% of reviews | **50.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 199 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Donalee Markus](https://appshunter.io/developer/396769078) | [GOKAKU SUPPLI, LIMITED LIABILITY CO.](https://appshunter.io/developer/1440310107) |

## What reviewers say

### Strong Mind Puzzles

[App page](https://appshunter.io/ios/app/strong-mind-puzzles/id396769075)

This game challenges your brain with progressively difficult puzzles designed to enhance cognitive skills. It helps users reduce impulsivity, improve planning, and develop introspection through unique gameplay mechanics.

**Highlights:** Progressively difficult puzzle variations, Internal dialogue for skill building, Reduces impulsivity, Enhances planning behavior, Encourages introspection, Error-detection reflex training

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Levels 4-9 | $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 Strong Mind Puzzles free?

Strong Mind Puzzles costs $29.99, and also offers in-app purchases.

### Is Dual N free?

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

### Which has better reviews, Strong Mind Puzzles or Dual N?

Dual N is rated higher. Strong Mind Puzzles averages 3.8 out of 5 from 11 ratings, while Dual N averages 4.6 from 380 ratings.

### Do Strong Mind Puzzles or Dual N have ads?

Dual N shows ads; Strong Mind Puzzles does not.

### Which is updated more often, Strong Mind Puzzles or Dual N?

Strong Mind Puzzles ships an update every 5 weeks, and Dual N fortnightly. Most recently, Strong Mind Puzzles was updated on November 1, 2026 and Dual N on November 11, 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.*