# Abacus Trainer 2 vs Dual N

The clearest difference is price: Dual N at Free against Abacus Trainer 2's $4.99. Abacus Trainer 2's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Dual N is free to download; Abacus Trainer 2 costs $4.99 up front. Dual N sells 2 in-app purchases, starting at $3.99 per month. Abacus Trainer 2 asks for nothing beyond the download.

## The numbers

| Metric | Abacus Trainer 2 | Dual N |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/dual-n-back-memory-trainer/id6759211886/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | — |
| Monetization | Paid | **Freemium** |
| Size | 8 MB | 27 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [Konstanty Koszewski](https://appshunter.io/developer/1871696981) |

## What reviewers say

### Abacus Trainer 2

[App page](https://appshunter.io/ios/app/abacus-trainer-2/id1073562228)

This app generates a wide variety of math calculation exercises to improve speed and accuracy. It offers two modes: practice for accuracy and challenge for speed. Performance reports help identify strengths and weaknesses for a personalized learning approach.

**Highlights:** Customizable question generation, Practice mode for accuracy, Challenge mode for speed, Performance reporting, PDF export for offline use, Randomized quizzes

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

**In-app purchases:** none


### Dual N

[App page](https://appshunter.io/ios/app/dual-n-back-memory-trainer/id6759211886)

This app offers structured cognitive training to enhance working memory and focus. It features adaptive challenges, detailed session metrics, and long-term progress tracking. Users can customize their training environment and follow guided plans for measurable improvements.

**Highlights:** Adaptive Dual N-Back training, Session metrics and analytics, Long-term progress charts, Guided training plans, Customizable training environment, Low-distraction UI

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dual N-back Monthly Premium | $3.99 | per month |
| Dual N-back Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Abacus Trainer 2 free?

Abacus Trainer 2 costs $4.99, with no in-app purchases.

### Is Dual N free?

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

### Do Abacus Trainer 2 or Dual N have ads?

Dual N shows ads; Abacus Trainer 2 does not.

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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.*