# 四字熟語の暗記・反復学習｜エビ四 vs ダイエット診断 糖質制限クイズ

The clearest difference is in-app purchases: ダイエット診断 糖質制限クイズ at none against 四字熟語の暗記・反復学習｜エビ四's 1. ダイエット診断 糖質制限クイズ also leads on iOS requirement (11.0 vs 15.6). 四字熟語の暗記・反復学習｜エビ四's advantage is device support. On price there is nothing between them.

Both are free to download. 四字熟語の暗記・反復学習｜エビ四 sells 1 one-off in-app purchase. ダイエット診断 糖質制限クイズ asks for nothing beyond the download.

## The numbers

| Metric | 四字熟語の暗記・反復学習｜エビ四 | ダイエット診断 糖質制限クイズ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Every 2 months | — |
| Monetization | Ad-supported | — |
| Size | 13 MB | 30 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [keiji imamura](https://appshunter.io/developer/1496803101) | [TATSUYA KAWAGUCHI](https://appshunter.io/developer/1590623691) |

## What reviewers say

### 四字熟語の暗記・反復学習｜エビ四

[App page](https://appshunter.io/ios/app/id1504085749)

Learn 1600 Japanese four-character idioms through engaging quizzes and a spaced repetition system. This app helps improve vocabulary and prepare for exams and general knowledge tests, incorporating proverbs and idiomatic expressions.

**Highlights:** 1600 four-character idioms included, Spaced repetition algorithm, Game-like learning, Simple and intuitive interface, Randomized quiz questions, Progress tracking for mastery

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $2.99 | one-time |


### ダイエット診断 糖質制限クイズ

[App page](https://appshunter.io/ios/app/id6443506142)

**In-app purchases:** none


## Frequently asked questions

### Is 四字熟語の暗記・反復学習｜エビ四 free?

四字熟語の暗記・反復学習｜エビ四 is free to download, with in-app purchases available.

### Is ダイエット診断 糖質制限クイズ free?

ダイエット診断 糖質制限クイズ is free to download, with no in-app purchases.

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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.*