# AI文書スタイル変換 vs 返信どうする？

The clearest difference is ads: 返信どうする？ at none against AI文書スタイル変換's shown. 返信どうする？ also leads on update cadence (every 3 weeks vs every 4 months). On price, in-app purchases, device support and iOS requirement 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 返信どうする？ 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, 返信どうする？ every 3 weeks. The most recent releases landed on September 17, 2026 and August 10, 2026 respectively.

## The numbers

| Metric | AI文書スタイル変換 | 返信どうする？ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 10 MB | 5 MB |
| Requires iOS | 18 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Osawa Shunsuke](https://appshunter.io/developer/477431394) | [Appricot Co.,Ltd.](https://appshunter.io/developer/1716553156) |

## 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 |


### 返信どうする？

[App page](https://appshunter.io/ios/app/ai/id6741709838)

AI-powered tool to generate replies for various messages, from social media to business emails. It automatically detects the context and adjusts the tone, ensuring natural-sounding responses. Also offers proofreading and screenshot text extraction for convenience.

**Highlights:** AI-generated replies, Automatic context detection, Natural text formatting, Draft proofreading, Screenshot text extraction, Reply history and adjustment

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Plan | $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 返信どうする？ free?

返信どうする？ is free to download, with in-app purchases available.

### Do AI文書スタイル変換 or 返信どうする？ have ads?

AI文書スタイル変換 shows ads; 返信どうする？ does not.

### Which is updated more often, AI文書スタイル変換 or 返信どうする？?

AI文書スタイル変換 ships an update every 4 months, and 返信どうする？ every 3 weeks. Most recently, AI文書スタイル変換 was updated on September 17, 2026 and 返信どうする？ on August 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.*