# 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 vs 歴史ラッシュ!!

The clearest difference is price: 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 at Free against 歴史ラッシュ!!'s $4.99. 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 also leads on update cadence (every 2 weeks vs every 7 months) and iOS requirement (15.0 vs 17.6). 歴史ラッシュ!!'s advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.

四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 is free to download; 歴史ラッシュ!! costs $4.99 up front. 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 sells 10 in-app purchases, starting at $2.99 per month. 歴史ラッシュ!! asks for nothing beyond the download.

四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 ships an update every 2 weeks, 歴史ラッシュ!! every 7 months. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 | 歴史ラッシュ!! |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Size | 225 MB | 65 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [keiji imamura](https://appshunter.io/developer/1496803101) | [YOSHIRO TAKAHASHI](https://appshunter.io/developer/1862092761) |

## What reviewers say

### 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2

[App page](https://appshunter.io/ios/app/2/id6503683909)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| エビ四2 サブスクリプション/月 | $2.99 | per month |
| 四字熟語 中級 コース | $0.99 | one-time |
| 漢字 初級 コース | $0.99 | one-time |
| 漢字 上級 コース | $0.99 | one-time |
| 熟語帳登録+10 | $0.99 | one-time |
| 四字熟語3コースセット | $1.99 | one-time |
| 漢字3コースセット | $1.99 | one-time |
| 殿堂入り個別リセット | $1.99 | one-time |
| 熟語帳登録+30 | $1.99 | one-time |
| 熟語帳登録+50 | $2.99 | one-time |


### 歴史ラッシュ!!

[App page](https://appshunter.io/ios/app/id6756649334)

**In-app purchases:** none


## Frequently asked questions

### Is 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 free?

四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 is free to download, with in-app purchases available.

### Is 歴史ラッシュ!! free?

歴史ラッシュ!! costs $4.99, with no in-app purchases.

### Do 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 or 歴史ラッシュ!! have ads?

四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 shows ads; 歴史ラッシュ!! does not.

### Which is updated more often, 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 or 歴史ラッシュ!!?

四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 ships an update every 2 weeks, and 歴史ラッシュ!! every 7 months. Most recently, 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 was updated on October 6, 2026 and 歴史ラッシュ!! on October 16, 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.*