# Dual N vs Verbal Fluency

The clearest difference is review sentiment: Dual N at 51% against Verbal Fluency's 0%. Dual N also leads on price (Free vs $0.29) and rating (4.6 vs 3.8). Verbal Fluency's advantage is in-app purchases (none vs 2) and chart position (#37 vs unranked). On ads and iOS requirement there is nothing between them.

Dual N is free to download; Verbal Fluency costs $0.29 up front. Dual N sells 2 in-app purchases, starting at $0.99 per month. Verbal Fluency asks for nothing beyond the download.

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 376 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 51% of Dual N's written reviews are positive against 0% of Verbal Fluency's.

Dual N ships an update fortnightly, Verbal Fluency every 5 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Dual N | Verbal Fluency |
| --- | --- | --- |
| Price | **Free** | $0.29 |
| Rating | **[4.6 (376 ratings)](https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/verbal-fluency/id6473301249/reviews) |
| Number of ratings | **376** | 5 |
| Positive reviews | **50.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | — | **#37** |
| Size | 199 MB | 11 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [GOKAKU SUPPLI, LIMITED LIABILITY CO.](https://appshunter.io/developer/1440310107) | [Thomas Coomer](https://appshunter.io/developer/1006451481) |

## What reviewers say

### 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 |


### Verbal Fluency

[App page](https://appshunter.io/ios/app/verbal-fluency/id6473301249)

**Currently charting:** #37 Top Paid · Word (US App Store)

This is a fast-paced word game that tests your vocabulary, spelling, memory, and mental speed. Choose a letter, set a timer, and type as many words as possible before time runs out. It's perfect for brain training and language practice.

**Highlights:** Fast-paced word challenges, Vocabulary and spelling improvement, Multiple language support, Timed rounds for mental speed, Offline play, Score sharing and friend challenges

**In-app purchases:** none


## Frequently asked questions

### Is Dual N free?

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

### Is Verbal Fluency free?

Verbal Fluency costs $0.29, with no in-app purchases.

### Which has better reviews, Dual N or Verbal Fluency?

Dual N is rated higher. Dual N averages 4.6 out of 5 from 376 ratings, while Verbal Fluency averages 3.8 from 5 ratings.

### Do Dual N or Verbal Fluency have ads?

Both Dual N and Verbal Fluency show ads.

### Which is updated more often, Dual N or Verbal Fluency?

Dual N ships an update fortnightly, and Verbal Fluency every 5 months. Most recently, Dual N was updated on October 27, 2026 and Verbal Fluency 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.*