# AI文書スタイル変換 vs AI文章添削

The clearest difference is update cadence: AI文章添削 at every 3 weeks against AI文書スタイル変換's every 4 months. AI文章添削 also leads on iOS requirement (16.0 vs 18). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI文書スタイル変換 sells 2 one-off in-app purchases and AI文章添削 sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

AI文書スタイル変換 ships an update every 4 months, AI文章添削 every 3 weeks. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | AI文書スタイル変換 | AI文章添削 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 21 MB |
| Requires iOS | 18 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Osawa Shunsuke](https://appshunter.io/developer/477431394) | [Akira Fujisawa](https://appshunter.io/developer/1533514621) |

## What reviewers say

### AI文書スタイル変換

[App page](https://appshunter.io/ios/app/ai/id6446862035)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 開発を支援する | $1.99 | one-time |
| Pro版 | $4.99 | one-time |


### AI文章添削

[App page](https://appshunter.io/ios/app/ai/id6474089586)

This app uses AI to refine your writing, offering suggestions for grammar, spelling, and style. It can adjust text length and tailor content for different audiences and tones, making writing easier for everyone.

**Highlights:** AI-powered text correction, Grammar and spelling checks, Style and tone adjustment, Character count optimization, Audience-specific text tailoring, End-of-sentence style conversion

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| はかどるモード | $1.99 | per month |


## Frequently asked questions

### Is AI文書スタイル変換 free?

AI文書スタイル変換 is free to download, with in-app purchases available.

### Is AI文章添削 free?

AI文章添削 is free to download, with in-app purchases available.

### Do AI文書スタイル変換 or AI文章添削 have ads?

Both AI文書スタイル変換 and AI文章添削 show ads.

### Which is updated more often, AI文書スタイル変換 or AI文章添削?

AI文書スタイル変換 ships an update every 4 months, and AI文章添削 every 3 weeks. Most recently, AI文書スタイル変換 was updated on September 17, 2026 and AI文章添削 on September 10, 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.*