# 高校3年生で覚える英単語400 vs 楽しい社会小学４年

The clearest difference is in-app purchases: 高校3年生で覚える英単語400 at none against 楽しい社会小学４年's 1. 高校3年生で覚える英単語400 also leads on update cadence (every 7 months vs every 27 months) and iOS requirement (9.0 vs 18.2). 楽しい社会小学４年's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. 楽しい社会小学４年 sells 1 one-off in-app purchase. 高校3年生で覚える英単語400 asks for nothing beyond the download.

高校3年生で覚える英単語400 ships an update every 7 months, 楽しい社会小学４年 every 27 months. The most recent releases landed on October 10, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 高校3年生で覚える英単語400 | 楽しい社会小学４年 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/3400/id1470913121/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 7 months** | Every 27 months |
| Monetization | Ad-supported | — |
| Size | 15 MB | 15 MB |
| Requires iOS | **9.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Junpei Shimotsu](https://appshunter.io/developer/882299124) | [Norio Takeda](https://appshunter.io/developer/1485221811) |

## What reviewers say

### 高校3年生で覚える英単語400

[App page](https://appshunter.io/ios/app/3400/id1470913121)

This app helps high school seniors learn 400 English vocabulary words. It features pronunciation for listening practice and a medal system for mastering categories. The 4-choice question format allows for quick study sessions.

**Highlights:** 400 high school senior vocabulary words, Pronunciation feature for listening practice, 23 categorized vocabulary sets, Medal system for category mastery, 4-choice question format for quick study

**Features:** macOS Compatibility

**In-app purchases:** none


### 楽しい社会小学４年

[App page](https://appshunter.io/ios/app/id1545329355)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ゴールドコイン | $5.99 | one-time |


## Frequently asked questions

### Is 高校3年生で覚える英単語400 free?

高校3年生で覚える英単語400 is free to download, with no in-app purchases.

### Is 楽しい社会小学４年 free?

楽しい社会小学４年 is free to download, with in-app purchases available.

### Do 高校3年生で覚える英単語400 or 楽しい社会小学４年 have ads?

高校3年生で覚える英単語400 shows ads; 楽しい社会小学４年 does not.

### Which is updated more often, 高校3年生で覚える英単語400 or 楽しい社会小学４年?

高校3年生で覚える英単語400 ships an update every 7 months, and 楽しい社会小学４年 every 27 months. Most recently, 高校3年生で覚える英単語400 was updated on October 10, 2026 and 楽しい社会小学４年 on October 27, 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.*