# Dual N vs Kakooma

The clearest difference is ads: Kakooma at none against Dual N's shown. Kakooma also leads on review sentiment (61% vs 51%). Dual N's advantage is rating (4.6 vs 4.2). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Dual N sells 2 in-app purchases, starting at $0.99 per month and Kakooma sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Dual N holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 379 and 150 respectively. Written reviews complicate that: 51% of Dual N's written reviews are positive against 61% of Kakooma's, so the app with the better star average is not the one people write more warmly about.

Dual N ships an update fortnightly, Kakooma every 3 weeks. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Dual N | Kakooma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (379 ratings)](https://appshunter.io/ios/app/dual-n-back-brain-training/id1578693948/reviews)** | [4.2 (150 ratings)](https://appshunter.io/ios/app/kakooma-math-brain-puzzles/id6746321576/reviews) |
| Number of ratings | **379** | 150 |
| Positive reviews | 50.9% of reviews | **61.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 199 MB | 179 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [GOKAKU SUPPLI, LIMITED LIABILITY CO.](https://appshunter.io/developer/1440310107) | [Tang Math Games, LLC](https://appshunter.io/developer/1589291970) |

## 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 |


### Kakooma

[App page](https://appshunter.io/ios/app/kakooma-math-brain-puzzles/id6746321576)

Test your math skills in this puzzle game by finding number pairs that add up to or multiply to a target sum. Progress through four difficulty levels, race against the clock, and use hints to overcome challenges. Track your best scores to monitor improvement.

**Highlights:** Number pair puzzles, Addition and multiplication challenges, Four difficulty levels, Timed gameplay, Hint system, Score tracking

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins 240 | $0.99 | one-time |
| Coins 720 | $2.99 | one-time |
| Coins 1330 | $4.99 | one-time |
| Bundle | $4.99 | one-time |
| Remove Ads | $5.99 | one-time |
| Coins 2900 | $9.99 | one-time |
| Coins 6300 | $19.99 | one-time |
| Coins 17000 | $49.99 | one-time |


## Frequently asked questions

### Is Dual N free?

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

### Is Kakooma free?

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

### Which has better reviews, Dual N or Kakooma?

Dual N is rated higher. Dual N averages 4.6 out of 5 from 379 ratings, while Kakooma averages 4.2 from 150 ratings.

### Do Dual N or Kakooma have ads?

Dual N shows ads; Kakooma does not.

### Which is updated more often, Dual N or Kakooma?

Dual N ships an update fortnightly, and Kakooma every 3 weeks. Most recently, Dual N was updated on November 7, 2026 and Kakooma on November 10, 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.*