# 手机扫描PDF vs 签章助手

The clearest difference is ads: 签章助手 at none against 手机扫描PDF's shown. 签章助手 also leads on update cadence (monthly vs every 4 months). 手机扫描PDF's advantage is iOS requirement (11.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 手机扫描PDF sells 3 in-app purchases, starting at $3.99 per month and 签章助手 sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

手机扫描PDF ships an update every 4 months, 签章助手 monthly. The most recent releases landed on October 27, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 手机扫描PDF | 签章助手 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 78 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Yiyue technology Co., Ltd.](https://appshunter.io/developer/1559735199) | [家芳 陶](https://appshunter.io/developer/1891660721) |

## What reviewers say

### 手机扫描PDF

[App page](https://appshunter.io/ios/app/pdf-pdf-and-ocr/id6443965365)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度VIP会员 | $3.99 | per month |
| 季度VIP会员 | $6.99 | per 3 months |
| 年度VIP会员 | $17.99 | per year |


### 签章助手

[App page](https://appshunter.io/ios/app/pdf/id6762083508)

This tool allows users to easily add stamps and signatures to PDF documents. It supports various stamp types, including contract and cross-page seals, and allows for flexible placement and resizing. Once applied, stamps and signatures are permanently embedded into the PDF for secure sharing and archiving.

**Highlights:** Add stamps and signatures to PDFs, Supports contract and cross-page seals, Drag, rotate, and resize elements, Multi-page document processing, Embeds stamps/signatures into exported PDFs, Local storage for security

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day VIP (unlock all) | $3.99 | per 7 days |
| 7days | $3.99 | one-time |
| lifetime | $19.99 | one-time |


## Frequently asked questions

### Is 手机扫描PDF free?

手机扫描PDF is free to download, with in-app purchases available.

### Is 签章助手 free?

签章助手 is free to download, with in-app purchases available.

### Do 手机扫描PDF or 签章助手 have ads?

手机扫描PDF shows ads; 签章助手 does not.

### Which is updated more often, 手机扫描PDF or 签章助手?

手机扫描PDF ships an update every 4 months, and 签章助手 monthly. Most recently, 手机扫描PDF was updated on October 27, 2026 and 签章助手 on October 4, 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.*