# 参考書de英語脳 vs アプ問 地理｜共通テスト・大学受験 一問一答

The clearest difference is in-app purchases: アプ問 地理｜共通テスト・大学受験 一問一答 at none against 参考書de英語脳's 4. アプ問 地理｜共通テスト・大学受験 一問一答 also leads on update cadence (every 8 days vs every 3 weeks). 参考書de英語脳's advantage is ads (none vs shown) and iOS requirement (13.6 vs 15.0). On price 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. アプ問 地理｜共通テスト・大学受験 一問一答 asks for nothing beyond the download.

参考書de英語脳 ships an update every 3 weeks, アプ問 地理｜共通テスト・大学受験 一問一答 every 8 days. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 参考書de英語脳 | アプ問 地理｜共通テスト・大学受験 一問一答 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 52 MB |
| Requires iOS | **13.6** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seiji Mukai](https://appshunter.io/developer/1228461062) | [Himeka Saito](https://appshunter.io/developer/6819685777) |

## 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 |


### アプ問 地理｜共通テスト・大学受験 一問一答

[App page](https://appshunter.io/ios/app/id6796917968)

This quiz app offers over 2100 multiple-choice questions covering all aspects of the common university entrance exam geography. It categorizes questions into 14 topics and three difficulty levels, with detailed explanations for each. Utilize spaced repetition to reinforce learning and prepare effectively for exams.

**Highlights:** 2100+ questions across 14 categories, Three difficulty levels (basic, standard, advanced), Spaced repetition for effective review, Detailed explanations for all questions, Offline study capability, Multiple-choice format for quick practice

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

**In-app purchases:** none


## 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 アプ問 地理｜共通テスト・大学受験 一問一答 free?

アプ問 地理｜共通テスト・大学受験 一問一答 is free to download, with no in-app purchases.

### Do 参考書de英語脳 or アプ問 地理｜共通テスト・大学受験 一問一答 have ads?

アプ問 地理｜共通テスト・大学受験 一問一答 shows ads; 参考書de英語脳 does not.

### Which is updated more often, 参考書de英語脳 or アプ問 地理｜共通テスト・大学受験 一問一答?

参考書de英語脳 ships an update every 3 weeks, and アプ問 地理｜共通テスト・大学受験 一問一答 every 8 days. Most recently, 参考書de英語脳 was updated on October 19, 2026 and アプ問 地理｜共通テスト・大学受験 一問一答 on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*