# AIメールくん vs AI文章添削

The clearest difference is ads: AIメールくん at none against AI文章添削's shown. AIメールくん also leads on update cadence (every 9 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. AIメールくん sells 1 in-app purchase, starting at $6.99 per 7 days 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メールくん ships an update every 9 days, AI文章添削 every 3 weeks. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | AIメールくん | AI文章添削 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 21 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AppEngine](https://appshunter.io/developer/1684103190) | [Akira Fujisawa](https://appshunter.io/developer/1533514621) |

## What reviewers say

### AIメールくん

[App page](https://appshunter.io/ios/app/ai/id6470747443)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | per 7 days |


### 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メールくん free?

AIメールくん 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メールくん or AI文章添削 have ads?

AI文章添削 shows ads; AIメールくん does not.

### Which is updated more often, AIメールくん or AI文章添削?

AIメールくん ships an update every 9 days, and AI文章添削 every 3 weeks. Most recently, AIメールくん was updated on September 19, 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.*