# 高校英単語 エビ英高｜4択で反復学習 vs ケミマスター

The clearest difference is in-app purchases: ケミマスター at none against 高校英単語 エビ英高｜4択で反復学習's 1. ケミマスター also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). 高校英単語 エビ英高｜4択で反復学習's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On price there is nothing between them.

Both are free to download. 高校英単語 エビ英高｜4択で反復学習 sells 1 one-off in-app purchase. ケミマスター asks for nothing beyond the download.

高校英単語 エビ英高｜4択で反復学習 ships an update every 2 months, ケミマスター every 2 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 高校英単語 エビ英高｜4択で反復学習 | ケミマスター |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 23 MB | 244 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [keiji imamura](https://appshunter.io/developer/1496803101) | [Shuntarou Kojima](https://appshunter.io/developer/1805023945) |

## What reviewers say

### 高校英単語 エビ英高｜4択で反復学習

[App page](https://appshunter.io/ios/app/4/id1509303123)

This app helps high school students memorize 1300 essential English vocabulary words through a game-like interface. It uses a spaced repetition algorithm based on the forgetting curve to optimize review intervals, ensuring long-term retention. Perfect for quick study sessions or comprehensive test preparation.

**Highlights:** 1300 essential high school English words, Spaced repetition algorithm, Game-like learning experience, Randomized quiz format, Focus on weak words, Stage unlocking system

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示+問題300問追加+音声無制限 | $4.99 | one-time |


### ケミマスター

[App page](https://appshunter.io/ios/app/id6746825286)

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

**In-app purchases:** none


## Frequently asked questions

### Is 高校英単語 エビ英高｜4択で反復学習 free?

高校英単語 エビ英高｜4択で反復学習 is free to download, with in-app purchases available.

### Is ケミマスター free?

ケミマスター is free to download, with no in-app purchases.

### Do 高校英単語 エビ英高｜4択で反復学習 or ケミマスター have ads?

高校英単語 エビ英高｜4択で反復学習 shows ads; ケミマスター does not.

### Which is updated more often, 高校英単語 エビ英高｜4択で反復学習 or ケミマスター?

高校英単語 エビ英高｜4択で反復学習 ships an update every 2 months, and ケミマスター every 2 weeks. Most recently, 高校英単語 エビ英高｜4択で反復学習 was updated on November 3, 2026 and ケミマスター on October 28, 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.*