# 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 おんがくのべんきょう

The clearest difference is device support: 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 3 against おんがくのべんきょう's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to 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 sells 10 in-app purchases, starting at $2.99 per month and おんがくのべんきょう sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

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, おんがくのべんきょう every 10 days. The most recent releases landed on October 27, 2026 and October 22, 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 | おんがくのべんきょう |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Size | 225 MB | 8 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [keiji imamura](https://appshunter.io/developer/1496803101) | [Kinicy](https://appshunter.io/developer/366096366) |

## 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 |


### おんがくのべんきょう

[App page](https://appshunter.io/ios/app/id6785780617)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro（すべての もんだい） | $2.99 | one-time |


## 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 おんがくのべんきょう free?

おんがくのべんきょう is free to download, with in-app purchases available.

### 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 おんがくのべんきょう have ads?

Both 四字熟語クイズで暗記 高校受験・大学受験対策 エビ四2 and おんがくのべんきょう show ads.

### 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 おんがくのべんきょう?

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 おんがくのべんきょう every 10 days. 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 27, 2026 and おんがくのべんきょう on October 22, 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.*