# 究極英単語 vs 英熟語600問チャレンジ

The clearest difference is ads: 究極英単語 at none against 英熟語600問チャレンジ's shown. 英熟語600問チャレンジ's advantage is update cadence (every 2 months vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 究極英単語 sells 5 in-app purchases, starting at $5.49 per month and 英熟語600問チャレンジ sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

究極英単語 ships an update every 3 months, 英熟語600問チャレンジ every 2 months. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 究極英単語 | 英熟語600問チャレンジ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (29 ratings)](https://appshunter.io/ios/app/id556736118/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 153 MB | 19 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wisdom Technology Inc.](https://appshunter.io/developer/1281873094) | [Keiko Yukawa](https://appshunter.io/developer/719596665) |

## What reviewers say

### 究極英単語

[App page](https://appshunter.io/ios/app/id556736118)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 究極英単語(1ヵ月) | $5.49 | per month |
| 究極英単語(3ヵ月) | $12.99 | per 3 months |
| 究極英単語(6ヵ月) | $23.99 | per 6 months |
| 究極英単語(1年間) | $31.99 | per year |
| 究極英単語(永久) | $49.99 | one-time |


### 英熟語600問チャレンジ

[App page](https://appshunter.io/ios/app/600/id880074530)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | one-time |
| 単語帳作成数無制限 | $1.99 | one-time |
| 英熟語登録数無制限 | $1.99 | one-time |
| 英熟語の例文追加 | $2.99 | one-time |


## Frequently asked questions

### Is 究極英単語 free?

究極英単語 is free to download, with in-app purchases available.

### Is 英熟語600問チャレンジ free?

英熟語600問チャレンジ is free to download, with in-app purchases available.

### Do 究極英単語 or 英熟語600問チャレンジ have ads?

英熟語600問チャレンジ shows ads; 究極英単語 does not.

### Which is updated more often, 究極英単語 or 英熟語600問チャレンジ?

究極英単語 ships an update every 3 months, and 英熟語600問チャレンジ every 2 months. Most recently, 究極英単語 was updated on September 18, 2026 and 英熟語600問チャレンジ on September 23, 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.*