# do!book vs ビジネスメール定型文GPT

The clearest difference is in-app purchases: do!book at none against ビジネスメール定型文GPT's 2. do!book also leads on device support and iOS requirement (9.0 vs 16.0). On price there is nothing between them.

Both are free to download. ビジネスメール定型文GPT sells 2 one-off in-app purchases. do!book asks for nothing beyond the download.

## The numbers

| Metric | do!book | ビジネスメール定型文GPT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 5 MB | 27 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Digital Office  Japan  Inc.](https://appshunter.io/developer/348581782) | [YUKI WATANABE](https://appshunter.io/developer/1724288537) |

## What reviewers say

### do!book

[App page](https://appshunter.io/ios/app/dobook/id1459068800)

**Features:** macOS Compatibility

**In-app purchases:** none


### ビジネスメール定型文GPT

[App page](https://appshunter.io/ios/app/gpt/id6479664171)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| トークン追加 | $0.49 | one-time |
| 広告非表示 | $2.99 | one-time |


## Frequently asked questions

### Is do!book free?

do!book is free to download, with no in-app purchases.

### Is ビジネスメール定型文GPT free?

ビジネスメール定型文GPT is free to download, with in-app purchases available.

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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.*