# 英語マスター３千 vs Dual N Back

The clearest difference is in-app purchases: Dual N Back at none against 英語マスター３千's 1. 英語マスター３千's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. 英語マスター３千 sells 1 one-off in-app purchase. Dual N Back asks for nothing beyond the download.

## The numbers

| Metric | 英語マスター３千 | Dual N Back |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1121796558/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 30 MB | 1 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [james rogers](https://appshunter.io/developer/885785423) | [Yuta Hirose](https://appshunter.io/developer/1896426121) |

## What reviewers say

### 英語マスター３千

[App page](https://appshunter.io/ios/app/id1121796558)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3,000 English Phrases | $2.99 | one-time |


### Dual N Back

[App page](https://appshunter.io/ios/app/dual-n-back/id6767213239)

**In-app purchases:** none


## Frequently asked questions

### Is 英語マスター３千 free?

英語マスター３千 is free to download, with in-app purchases available.

### Is Dual N Back free?

Dual N Back is free to download, with no in-app purchases.

### Do 英語マスター３千 or Dual N Back have ads?

Neither 英語マスター３千 nor Dual N Back shows ads.

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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.*