# Boost.AI 英作文添削・共通テスト英語 vs コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説

The clearest difference is in-app purchases: コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 at none against Boost.AI 英作文添削・共通テスト英語's 3. Boost.AI 英作文添削・共通テスト英語's advantage is update cadence (every 4 days vs every 3 weeks) and review sentiment (90% vs 80%). On price, ads and device support there is nothing between them.

Both are free to download. Boost.AI 英作文添削・共通テスト英語 sells 3 in-app purchases, starting at $5.99 per month. コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 asks for nothing beyond the download.

Boost.AI 英作文添削・共通テスト英語 ships an update every 4 days, コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Boost.AI 英作文添削・共通テスト英語 | コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **90.5% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Freemium | **Free** |
| Size | 143 MB | 179 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ATSUSHI KIMURA](https://appshunter.io/developer/1829870349) | [RYOTA UEMATSU](https://appshunter.io/developer/1829255016) |

## What reviewers say

### Boost.AI 英作文添削・共通テスト英語

[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 |


### コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説

[App page](https://appshunter.io/ios/app/id6786567231)

Prepare for a wide range of national and qualification exams with practice questions, review tools, and flashcards. Create custom tests from your own materials and compete in quizzes against others. All content is available offline after initial download.

**Highlights:** Past exam questions with explanations, Flashcards for memorization, Create custom tests from your own materials, Offline practice available, Quiz battles against AI or friends, Progress tracking and review

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

**In-app purchases:** none


## Frequently asked questions

### Is Boost.AI 英作文添削・共通テスト英語 free?

Boost.AI 英作文添削・共通テスト英語 is free to download, with in-app purchases available.

### Is コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 free?

コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 is free to download, with no in-app purchases.

### Do Boost.AI 英作文添削・共通テスト英語 or コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 have ads?

Neither Boost.AI 英作文添削・共通テスト英語 nor コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 shows ads.

### Which is updated more often, Boost.AI 英作文添削・共通テスト英語 or コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説?

Boost.AI 英作文添削・共通テスト英語 ships an update every 4 days, and コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 every 3 weeks. Most recently, Boost.AI 英作文添削・共通テスト英語 was updated on October 24, 2026 and コクシメイク｜臨床工学技士・放射線技師の国家試験過去問・解説 on October 25, 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.*