# 有機化学 vs 英語学習

The clearest difference is price: 英語学習 at Free against 有機化学's $5.99. 英語学習 also leads on iOS requirement (13.0 vs 15.6). 有機化学's advantage is in-app purchases (none vs 3). On review sentiment, update cadence, ads and device support there is nothing between them.

英語学習 is free to download; 有機化学 costs $5.99 up front. 英語学習 sells 3 in-app purchases, starting at $5.99 per month. 有機化学 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 有機化学 | 英語学習 |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Positive reviews | **92.6% of reviews** | 90.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | — | Freemium |
| Size | 39 MB | 143 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hideki Touhara](https://appshunter.io/developer/1268738829) | [ATSUSHI KIMURA](https://appshunter.io/developer/1829870349) |

## What reviewers say

### 有機化学

[App page](https://appshunter.io/ios/app/id1317601872)

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

**In-app purchases:** none


### 英語学習

[App page](https://appshunter.io/ios/app/boostai/id6749287559)

This AI-powered app offers instant English writing feedback, detailed explanations, and AI chat for deeper understanding. It supports various writing styles and learning goals, helping users improve their English proficiency anytime, anywhere.

**Highlights:** Instant AI essay correction, Detailed explanations for errors, Handwriting recognition for essays, AI chat for clarification, Learning history management, Diverse question formats, Flashcards and English news

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boost Pro 月額プラン | $5.99 | per month |
| 3ヶ月 | $11.99 | per 3 months |
| Boost Pro 年額プラン | $39.99 | per year |


## Frequently asked questions

### Is 有機化学 free?

有機化学 costs $5.99, with no in-app purchases.

### Is 英語学習 free?

英語学習 is free to download, with in-app purchases available.

### Do 有機化学 or 英語学習 have ads?

Neither 有機化学 nor 英語学習 shows ads.

### Which is updated more often, 有機化学 or 英語学習?

有機化学 ships an update every 2 days, and 英語学習 every 2 days. Most recently, 有機化学 was updated on September 26, 2026 and 英語学習 on September 24, 2026.

---

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