# 高校3年生で覚える英単語400 vs よくわかる算数小学３年（ダンケ）

The clearest difference is in-app purchases: 高校3年生で覚える英単語400 at none against よくわかる算数小学３年（ダンケ）'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 30 months) and iOS requirement (9.0 vs 18.2). よくわかる算数小学３年（ダンケ）'s advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. よくわかる算数小学３年（ダンケ） 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, よくわかる算数小学３年（ダンケ） every 30 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 高校3年生で覚える英単語400 | よくわかる算数小学３年（ダンケ） |
| --- | --- | --- |
| 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 30 months |
| Monetization | Ad-supported | — |
| Size | 15 MB | 9 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


### よくわかる算数小学３年（ダンケ）

[App page](https://appshunter.io/ios/app/id1525990429)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ゴールドコイン | $7.99 | 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 よくわかる算数小学３年（ダンケ） free?

よくわかる算数小学３年（ダンケ） is free to download, with in-app purchases available.

### Do 高校3年生で覚える英単語400 or よくわかる算数小学３年（ダンケ） have ads?

高校3年生で覚える英単語400 shows ads; よくわかる算数小学３年（ダンケ） does not.

### Which is updated more often, 高校3年生で覚える英単語400 or よくわかる算数小学３年（ダンケ）?

高校3年生で覚える英単語400 ships an update every 7 months, and よくわかる算数小学３年（ダンケ） every 30 months. Most recently, 高校3年生で覚える英単語400 was updated on November 11, 2026 and よくわかる算数小学３年（ダンケ） on November 3, 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.*