# Chat写作助手 vs AI绘本库

The clearest difference is in-app purchases: AI绘本库 at none against Chat写作助手's 6. Chat写作助手's advantage is update cadence (every 5 days vs every 3 weeks) and iOS requirement (10.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. Chat写作助手 sells 6 in-app purchases, starting at $4.99 per 7 days. AI绘本库 asks for nothing beyond the download.

Chat写作助手 ships an update every 5 days, AI绘本库 every 3 weeks. The most recent releases landed on October 16, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Chat写作助手 | AI绘本库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 33 MB | 95 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [启华 易](https://appshunter.io/developer/1718473417) | [汉光 杨](https://appshunter.io/developer/1611145104) |

## What reviewers say

### Chat写作助手

[App page](https://appshunter.io/ios/app/chat-ai/id6473689504)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $4.99 | per 7 days |
| 月会员 | $9.99 | per month |
| 季VIP | $14.99 | per 3 months |
| 年会员 | $24.99 | per year |
| 限时永久会员 | $14.99 | one-time |
| 永久会员 | $29.99 | one-time |


### AI绘本库

[App page](https://appshunter.io/ios/app/ai-ai/id6745256933)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chat写作助手 free?

Chat写作助手 is free to download, with in-app purchases available.

### Is AI绘本库 free?

AI绘本库 is free to download, with no in-app purchases.

### Do Chat写作助手 or AI绘本库 have ads?

Neither Chat写作助手 nor AI绘本库 shows ads.

### Which is updated more often, Chat写作助手 or AI绘本库?

Chat写作助手 ships an update every 5 days, and AI绘本库 every 3 weeks. Most recently, Chat写作助手 was updated on October 16, 2026 and AI绘本库 on October 28, 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.*