# AIチャット vs Essay Coach

The clearest difference is review sentiment: Essay Coach at 57% against AIチャット's 45%. AIチャット's advantage is iOS requirement (14.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AIチャット sells 5 in-app purchases, starting at $2.99 per month and Essay Coach sells 7 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

AIチャット ships an update every 3 weeks, Essay Coach monthly. The most recent releases landed on September 14, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | AIチャット | Essay Coach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/ai/id1673290426/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 45.0% of reviews | **57.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 36 MB | 14 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Tsuyoshi Yonemoto](https://appshunter.io/developer/348609273) | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) |

## What reviewers say

### AIチャット

[App page](https://appshunter.io/ios/app/ai/id1673290426)

Engage in natural language conversations with an AI powered by advanced technology. Share your thoughts, ask questions, or simply chat. It's designed to understand a wide range of topics and continuously improves.

**Highlights:** Free to use, Japanese language support, No login required, Natural language processing, Quick responses, Continuous learning

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $2.99 | per month |
| プレミアム | $2.99 | per month |
| プレミアムPRO | $19.99 | per month |
| プレミアム | $34.99 | per year |
| 買い切りプレミアム | $59.99 | one-time |


### Essay Coach

[App page](https://appshunter.io/ios/app/essay-coach/id6466455974)

Generate essays with AI assistance, customizing word count, writing style, and keywords. Collaborate on your writing to achieve the desired impression and clarity.

**Highlights:** AI essay generation, Customizable word count, Selectable writing styles, Keyword inclusion, Collaborative creation

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Essay PRO Editon | $0.99 | per month |
| AI Essay PRO Editon(6 months) | $4.99 | per 6 months |
| AI Essay PRO Plus Edition | $5.99 | per month |
| AI Essay PRO Plus Edition (6months) | $19.99 | per 6 months |
| 生成ポイント（10ポイント） | $0.99 | one-time |
| 生成ポイント（30ポイント） | $2.99 | one-time |
| 生成ポイント（70ポイント） | $3.99 | one-time |


## Frequently asked questions

### Is AIチャット free?

AIチャット is free to download, with in-app purchases available.

### Is Essay Coach free?

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

### Do AIチャット or Essay Coach have ads?

Both AIチャット and Essay Coach show ads.

### Which is updated more often, AIチャット or Essay Coach?

AIチャット ships an update every 3 weeks, and Essay Coach monthly. Most recently, AIチャット was updated on September 14, 2026 and Essay Coach on September 17, 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.*