# 图片转PDF vs Chat

The clearest difference is in-app purchases: 图片转PDF at none against Chat's 3. 图片转PDF also leads on update cadence (daily vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chat sells 3 in-app purchases, starting at $6.99 per 7 days. 图片转PDF asks for nothing beyond the download.

图片转PDF ships an update daily, Chat weekly. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 图片转PDF | Chat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Weekly |
| Size | 0 MB | 58 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [义轩 高](https://appshunter.io/developer/1857499417) | [Reinosa Enterprises, Inc.](https://appshunter.io/developer/6778777591) |

## What reviewers say

### 图片转PDF

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Chat

[App page](https://appshunter.io/ios/app/chat-ask-agent-anything/id6780727802)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $6.99 | per 7 days |
| Annual subscription | $49.99 | per year |
| Lifetime subscription | $99.99 | one-time |


## Frequently asked questions

### Is 图片转PDF free?

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

### Is Chat free?

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

### Do 图片转PDF or Chat have ads?

Neither 图片转PDF nor Chat shows ads.

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

图片转PDF ships an update daily, and Chat weekly. Most recently, 图片转PDF was updated on October 5, 2026 and Chat on October 18, 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.*