# AI Chat小助手 vs 图片转PDF

The clearest difference is in-app purchases: 图片转PDF at none against AI Chat小助手's 4. 图片转PDF also leads on update cadence (daily vs every 5 weeks). AI Chat小助手's advantage is iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. AI Chat小助手 sells 4 in-app purchases, starting at $4.99 per 7 days. 图片转PDF asks for nothing beyond the download.

AI Chat小助手 ships an update every 5 weeks, 图片转PDF daily. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | AI Chat小助手 | 图片转PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Size | 21 MB | 0 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [广志 李](https://appshunter.io/developer/1689223989) | [义轩 高](https://appshunter.io/developer/1857499417) |

## What reviewers say

### AI Chat小助手

[App page](https://appshunter.io/ios/app/ai-chat-chatbot/id6451243460)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 高级会员周订阅 | $4.99 | per 7 days |
| 高级会员月订阅 | $9.99 | per month |
| 高级会员季订阅 | $14.99 | per 3 months |
| 高级会员年订阅 | $29.99 | per year |


### 图片转PDF

[App page](https://appshunter.io/ios/app/pdf-pdfpdf/id6756543529)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AI Chat小助手 free?

AI Chat小助手 is free to download, with in-app purchases available.

### Is 图片转PDF free?

图片转PDF is free to download, with no in-app purchases.

### Do AI Chat小助手 or 图片转PDF have ads?

Neither AI Chat小助手 nor 图片转PDF shows ads.

### Which is updated more often, AI Chat小助手 or 图片转PDF?

AI Chat小助手 ships an update every 5 weeks, and 图片转PDF daily. Most recently, AI Chat小助手 was updated on October 4, 2026 and 图片转PDF on October 5, 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.*