# 图片转PDF：文档格式转换 vs NoteBox

图片转PDF：文档格式转换 and NoteBox are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 图片转PDF：文档格式转换 | NoteBox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | — | Every 4 days |
| Size | 15 MB | 19 MB |
| Requires iOS | **16** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Duoxiang Technology Co., Ltd](https://appshunter.io/developer/1534573413) | [随香 林](https://appshunter.io/developer/1618597588) |

## What reviewers say

### 图片转PDF：文档格式转换

[App page](https://appshunter.io/ios/app/pdf/id6747079477)

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

**In-app purchases:** none


### NoteBox

[App page](https://appshunter.io/ios/app/notebox-simple-notesnotepad/id6757138343)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 图片转PDF：文档格式转换 free?

图片转PDF：文档格式转换 is free to download, with no in-app purchases.

### Is NoteBox free?

NoteBox is free to download, with no in-app purchases.

### Do 图片转PDF：文档格式转换 or NoteBox have ads?

Both 图片转PDF：文档格式转换 and NoteBox show ads.

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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.*