# 英語の王様 vs ECOunit

The clearest difference is in-app purchases: ECOunit at none against 英語の王様's 3. ECOunit also leads on ads (none vs shown). 英語の王様's advantage is iOS requirement (15.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. 英語の王様 sells 3 in-app purchases, starting at $2.49 per month. ECOunit asks for nothing beyond the download.

英語の王様 ships an update every 6 weeks, ECOunit monthly. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 英語の王様 | ECOunit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1636450866/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 138 MB | 9 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HANAUTA INC.](https://appshunter.io/developer/492009717) | [ESC](https://appshunter.io/developer/1884401181) |

## What reviewers say

### 英語の王様

[App page](https://appshunter.io/ios/app/id1636450866)

Learn English through fun, quiz-like challenges designed for high school and university entrance exams. Master vocabulary and grammar efficiently with short play sessions and rewarding quests.

**Highlights:** Quiz-like learning format, Over 1000 English questions, Short play sessions, High school & university exam focus, Game-like progression, Quest mode with rewards

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 特訓プラン | $2.49 | per month |
| 特訓プラン | $12.99 | per 6 months |
| 特訓プラン | $20.99 | per year |


### ECOunit

[App page](https://appshunter.io/ios/app/ecounit/id6760427718)

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

**In-app purchases:** none


## Frequently asked questions

### Is 英語の王様 free?

英語の王様 is free to download, with in-app purchases available.

### Is ECOunit free?

ECOunit is free to download, with no in-app purchases.

### Do 英語の王様 or ECOunit have ads?

英語の王様 shows ads; ECOunit does not.

### Which is updated more often, 英語の王様 or ECOunit?

英語の王様 ships an update every 6 weeks, and ECOunit monthly. Most recently, 英語の王様 was updated on November 3, 2026 and ECOunit on October 25, 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.*