# 英語で早口ことば vs 化学の英単語 でた単（理系の英単語）

The clearest difference is price: 英語で早口ことば at Free against 化学の英単語 でた単（理系の英単語）'s $6.99. 英語で早口ことば also leads on iOS requirement (8.0 vs 15.4). 化学の英単語 でた単（理系の英単語）'s advantage is review sentiment (100% vs 56%) and update cadence (every 5 days vs every 21 months). On ads, in-app purchases and device support there is nothing between them.

英語で早口ことば is free to download; 化学の英単語 でた単（理系の英単語） costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

英語で早口ことば ships an update every 21 months, 化学の英単語 でた単（理系の英単語） every 5 days. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 英語で早口ことば | 化学の英単語 でた単（理系の英単語） |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Positive reviews | 55.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 5 days** |
| Monetization | **Free** | Paid |
| Size | 42 MB | 98 MB |
| Requires iOS | **8.0** | 15.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CAI MEDIA CO.,LTD.](https://appshunter.io/developer/343272071) | [Namiko Takahashi](https://appshunter.io/developer/1349212420) |

## What reviewers say

### 英語で早口ことば

[App page](https://appshunter.io/ios/app/checker/id863643706)

This app helps improve English pronunciation by having users practice tongue twisters. A cute bird character provides instant feedback on pronunciation, making learning fun and engaging. It's designed to build confidence in speaking and improve listening skills.

**Highlights:** Pronunciation assessment with AI, Tongue twister challenges, Three difficulty levels, Training and test modes, Progress tracking with scoring, Focus on rhythm and tongue movement

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

**In-app purchases:** none


### 化学の英単語 でた単（理系の英単語）

[App page](https://appshunter.io/ios/app/id1440114893)

This app helps students learn scientific and mathematical English vocabulary. It offers various practice modes, including tests, flashcards, and AI-powered Q&A, to improve comprehension for university entrance exams and beyond. It covers chemistry, biology, and mathematics with over 3,500 terms.

**Highlights:** Vocabulary tests, English-to-English definitions, Example sentences, Customizable flashcards, AI-powered Q&A, Typing practice, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is 英語で早口ことば free?

英語で早口ことば is free to download, with no in-app purchases.

### Is 化学の英単語 でた単（理系の英単語） free?

化学の英単語 でた単（理系の英単語） costs $6.99, with no in-app purchases.

### Do 英語で早口ことば or 化学の英単語 でた単（理系の英単語） have ads?

Neither 英語で早口ことば nor 化学の英単語 でた単（理系の英単語） shows ads.

### Which is updated more often, 英語で早口ことば or 化学の英単語 でた単（理系の英単語）?

英語で早口ことば ships an update every 21 months, and 化学の英単語 でた単（理系の英単語） every 5 days. Most recently, 英語で早口ことば was updated on November 1, 2026 and 化学の英単語 でた単（理系の英単語） on November 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*