# AI文書スタイル変換 vs WorkReply

The clearest difference is ads: WorkReply at none against AI文書スタイル変換's shown. WorkReply also leads on update cadence (every 5 days 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 WorkReply sells 1 in-app purchase, starting at $2.99 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, WorkReply every 5 days. The most recent releases landed on September 17, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | AI文書スタイル変換 | WorkReply |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 10 MB | 2 MB |
| Requires iOS | 18 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Osawa Shunsuke](https://appshunter.io/developer/477431394) | [TATSUYA ASANO](https://appshunter.io/developer/1877006861) |

## 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 |


### WorkReply

[App page](https://appshunter.io/ios/app/workreply-ai-email-assistant/id6759252981)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | 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 WorkReply free?

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

### Do AI文書スタイル変換 or WorkReply have ads?

AI文書スタイル変換 shows ads; WorkReply does not.

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

AI文書スタイル変換 ships an update every 4 months, and WorkReply every 5 days. Most recently, AI文書スタイル変換 was updated on September 17, 2026 and WorkReply on October 1, 2026.

---

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