# 英検®英作文 AI添削 Yoshi vs StudyBoard

The clearest difference is ads: 英検®英作文 AI添削 Yoshi at none against StudyBoard's shown. StudyBoard's advantage is update cadence (weekly vs every 4 months) and iOS requirement (12.0 vs 16.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 英検®英作文 AI添削 Yoshi sells 1 in-app purchase, starting at $7.99 per month and StudyBoard sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

英検®英作文 AI添削 Yoshi ships an update every 4 months, StudyBoard weekly. Both last shipped on October 28, 2026.

## The numbers

| Metric | 英検®英作文 AI添削 Yoshi | StudyBoard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 4 MB | 90 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yoshitaka Matsumoto](https://appshunter.io/developer/1799729892) | [YUKI WAGO](https://appshunter.io/developer/1844646280) |

## What reviewers say

### 英検®英作文 AI添削 Yoshi

[App page](https://appshunter.io/ios/app/ai-yoshi/id6742748653)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムサービス | $7.99 | per month |


### StudyBoard

[App page](https://appshunter.io/ios/app/studyboard/id6753719110)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyBoard Premium 月額 | $1.99 | per month |
| StudyBoard Premium 年額 | $22.99 | per year |
| AIチケット 1枚 | $0.49 | one-time |
| AIチケット 5枚 | $1.99 | one-time |


## Frequently asked questions

### Is 英検®英作文 AI添削 Yoshi free?

英検®英作文 AI添削 Yoshi is free to download, with in-app purchases available.

### Is StudyBoard free?

StudyBoard is free to download, with in-app purchases available.

### Do 英検®英作文 AI添削 Yoshi or StudyBoard have ads?

StudyBoard shows ads; 英検®英作文 AI添削 Yoshi does not.

### Which is updated more often, 英検®英作文 AI添削 Yoshi or StudyBoard?

英検®英作文 AI添削 Yoshi ships an update every 4 months, and StudyBoard weekly. Most recently, 英検®英作文 AI添削 Yoshi was updated on October 28, 2026 and StudyBoard on October 28, 2026.

---

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