# 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 Rido Land

The clearest difference is update cadence: 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 every 2 weeks against Rido Land's monthly. Rido Land's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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 Rido Land sells 6 in-app purchases, starting at $3.99 per 7 days. 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, Rido Land monthly. The most recent releases landed on October 6, 2026 and October 25, 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 | Rido Land |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 225 MB | 58 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [keiji imamura](https://appshunter.io/developer/1496803101) | [Rido Lang Sp Z O.O.](https://appshunter.io/developer/1809375471) |

## 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 |


### Rido Land

[App page](https://appshunter.io/ios/app/rido-land/id6760786682)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rido Land Weekly | $3.99 | per 7 days |
| Rido Land Free Trial | $4.99 | per 7 days |
| Rido Land Monthly | $7.99 | per month |
| Rido Land 3 Months | $14.99 | per 3 months |
| Rido Land 6 Months | $17.99 | per 6 months |
| Rido Land Annual Plan | $24.99 | per year |


## 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 Rido Land free?

Rido Land 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 Rido Land 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 Rido Land 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 Rido Land?

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 Rido Land monthly. 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 Rido Land on October 25, 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.*