# PDF快速盖章 vs 盖章

The clearest difference is price: 盖章 at Free against PDF快速盖章's $4.99. 盖章 also leads on update cadence (every 4 days vs every 4 months) and device support (4 vs 1). PDF快速盖章's advantage is in-app purchases (none vs 1). On ads there is nothing between them.

盖章 is free to download; PDF快速盖章 costs $4.99 up front. 盖章 sells 1 in-app purchase, starting at $1.99 per month. PDF快速盖章 asks for nothing beyond the download.

PDF快速盖章 ships an update every 4 months, 盖章 every 4 days. The most recent releases landed on September 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | PDF快速盖章 | 盖章 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 27 MB | 7 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [海昕 顾](https://appshunter.io/developer/606670314) | [Hangzhou Niufen Network Technology Co., Ltd.](https://appshunter.io/developer/1896746554) |

## What reviewers say

### PDF快速盖章

[App page](https://appshunter.io/ios/app/pdf/id6756157531)

This app allows for quick and easy stamping of PDF documents and images. It supports batch processing for multi-page PDFs, offers a comprehensive stamp library with customization options, and simulates realistic stamp effects. It's designed for efficient mobile document signing and processing.

**Highlights:** Quick stamping for PDFs and images, Batch processing for multi-page PDFs, Customizable stamp library, Realistic stamp effects with aging, Precise stamp adjustment, One-click common stamp setup, Direct opening from external apps

**Features:** macOS Compatibility

**In-app purchases:** none


### 盖章

[App page](https://appshunter.io/ios/app/e-stamp/id6775122604)

Easily add stamps and handwritten electronic signatures to PDF documents. Process contracts and agreements efficiently without printing or scanning, keeping your data secure locally on your device.

**Highlights:** Smart PDF stamping, Across-page seal generation, Handwritten electronic signatures, Batch stamping and signing, Local data processing, Seamless document import/export

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 盖章服务 | $1.99 | per month |


## Frequently asked questions

### Is PDF快速盖章 free?

PDF快速盖章 costs $4.99, with no in-app purchases.

### Is 盖章 free?

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

### Do PDF快速盖章 or 盖章 have ads?

Neither PDF快速盖章 nor 盖章 shows ads.

### Which is updated more often, PDF快速盖章 or 盖章?

PDF快速盖章 ships an update every 4 months, and 盖章 every 4 days. Most recently, PDF快速盖章 was updated on September 1, 2026 and 盖章 on September 9, 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.*