# 参考書de英語脳 vs シンプル英熟語

The clearest difference is ads: 参考書de英語脳 at none against シンプル英熟語's shown. 参考書de英語脳 also leads on iOS requirement (13.6 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 参考書de英語脳 sells 4 one-off in-app purchases and シンプル英熟語 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

参考書de英語脳 ships an update every 3 weeks, シンプル英熟語 monthly. The most recent releases landed on September 15, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 参考書de英語脳 | シンプル英熟語 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 27 MB | 34 MB |
| Requires iOS | **13.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Seiji Mukai](https://appshunter.io/developer/1228461062) | [RYOTA SUZUKI](https://appshunter.io/developer/1726784326) |

## What reviewers say

### 参考書de英語脳

[App page](https://appshunter.io/ios/app/de/id1228461063)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30日間利用権 | $0.99 | one-time |
| 90日間利用権 | $2.99 | one-time |
| 180日間利用権 | $5.99 | one-time |
| 365日間利用権 | $11.99 | one-time |


### シンプル英熟語

[App page](https://appshunter.io/ios/app/id6476452337)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $6.99 | one-time |


## Frequently asked questions

### Is 参考書de英語脳 free?

参考書de英語脳 is free to download, with in-app purchases available.

### Is シンプル英熟語 free?

シンプル英熟語 is free to download, with in-app purchases available.

### Do 参考書de英語脳 or シンプル英熟語 have ads?

シンプル英熟語 shows ads; 参考書de英語脳 does not.

### Which is updated more often, 参考書de英語脳 or シンプル英熟語?

参考書de英語脳 ships an update every 3 weeks, and シンプル英熟語 monthly. Most recently, 参考書de英語脳 was updated on September 15, 2026 and シンプル英熟語 on September 17, 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.*