# 公共・政治経済｜アシストシステム vs Boost.AI 英作文添削・共通テスト英語

The clearest difference is ads: Boost.AI 英作文添削・共通テスト英語 at none against 公共・政治経済｜アシストシステム's shown. Boost.AI 英作文添削・共通テスト英語 also leads on update cadence (every 4 days vs every 2 weeks) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 公共・政治経済｜アシストシステム sells 1 one-off in-app purchase and 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. Whichever you choose, the download price is not the number that matters.

公共・政治経済｜アシストシステム ships an update every 2 weeks, Boost.AI 英作文添削・共通テスト英語 every 4 days. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 公共・政治経済｜アシストシステム | Boost.AI 英作文添削・共通テスト英語 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 90.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 322 MB | 143 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Hayakawa](https://appshunter.io/developer/314516929) | [ATSUSHI KIMURA](https://appshunter.io/developer/1829870349) |

## What reviewers say

### 公共・政治経済｜アシストシステム

[App page](https://appshunter.io/ios/app/id6747278322)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 政治経済データの追加 | $2.99 | one-time |


### 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 |


## Frequently asked questions

### Is 公共・政治経済｜アシストシステム free?

公共・政治経済｜アシストシステム is free to download, with in-app purchases available.

### 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.

### Do 公共・政治経済｜アシストシステム or Boost.AI 英作文添削・共通テスト英語 have ads?

公共・政治経済｜アシストシステム shows ads; Boost.AI 英作文添削・共通テスト英語 does not.

### Which is updated more often, 公共・政治経済｜アシストシステム or Boost.AI 英作文添削・共通テスト英語?

公共・政治経済｜アシストシステム ships an update every 2 weeks, and Boost.AI 英作文添削・共通テスト英語 every 4 days. Most recently, 公共・政治経済｜アシストシステム was updated on October 7, 2026 and Boost.AI 英作文添削・共通テスト英語 on October 20, 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.*