# Boost.AI 英作文添削・共通テスト英語 vs NEXUS for UEC

The clearest difference is in-app purchases: NEXUS for UEC 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 ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence 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. NEXUS for UEC asks for nothing beyond the download.

Boost.AI 英作文添削・共通テスト英語 ships an update every 3 days, NEXUS for UEC every 6 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Boost.AI 英作文添削・共通テスト英語 | NEXUS for UEC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | Freemium | — |
| Size | 151 MB | 28 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ATSUSHI KIMURA](https://appshunter.io/developer/1829870349) | [HOMMA KENICHI](https://appshunter.io/developer/1878026402) |

## 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)

Practice past Common Test English exams with AI-powered essay correction. Improve reading, listening, and writing skills with detailed feedback and practice exercises. Review vocabulary and grammar to prepare for university entrance exams and English proficiency tests.

**Highlights:** Common Test reading and listening practice, AI essay correction for free writing and translation, Review vocabulary and grammar, Photo upload for handwritten essay correction, AI chat for clarification on corrections, Practice for university entrance exams and English tests

**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 |


### NEXUS for UEC

[App page](https://appshunter.io/ios/app/nexus-for-uec/id6759309164)

**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 NEXUS for UEC free?

NEXUS for UEC 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 NEXUS for UEC have ads?

NEXUS for UEC shows ads; Boost.AI 英作文添削・共通テスト英語 does not.

### Which is updated more often, Boost.AI 英作文添削・共通テスト英語 or NEXUS for UEC?

Boost.AI 英作文添削・共通テスト英語 ships an update every 3 days, and NEXUS for UEC every 6 days. Most recently, Boost.AI 英作文添削・共通テスト英語 was updated on November 8, 2026 and NEXUS for UEC on October 31, 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.*