# PDF File Protector vs 有料二维码

The clearest difference is price: 有料二维码 at Free against PDF File Protector's $19.99. 有料二维码 also leads on update cadence (weekly vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

有料二维码 is free to download; PDF File Protector costs $19.99 up front. PDF File Protector sells 1 one-off in-app purchase and 有料二维码 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDF File Protector ships an update every 2 months, 有料二维码 weekly. The most recent releases landed on October 12, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | PDF File Protector | 有料二维码 |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Positive reviews | — | 11.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 7 MB |
| Requires iOS | 16.6 | **16** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [乐祥 胡](https://appshunter.io/developer/1572365721) | [春辉 林](https://appshunter.io/developer/1687703456) |

## What reviewers say

### PDF File Protector

[App page](https://appshunter.io/ios/app/pdf-file-protector/id6738285744)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pdf签名内购 | $9.99 | one-time |


### 有料二维码

[App page](https://appshunter.io/ios/app/id6742899414)

Easily create and customize QR codes for various information like websites, Wi-Fi, and text. Offers a user-friendly interface with beautiful themes and high-definition export. No registration or ads for a seamless experience.

**Highlights:** Multiple QR code types (text, URL, Wi-Fi), Customizable themes and appearance, High-definition image export, Intuitive and simple interface, Save and share QR codes easily, History for quick access and reuse

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月VIP | $0.99 | one-time |
| 永久VIP | $1.99 | one-time |


## Frequently asked questions

### Is PDF File Protector free?

PDF File Protector costs $19.99, and also offers in-app purchases.

### Is 有料二维码 free?

有料二维码 is free to download, with in-app purchases available.

### Do PDF File Protector or 有料二维码 have ads?

Neither PDF File Protector nor 有料二维码 shows ads.

### Which is updated more often, PDF File Protector or 有料二维码?

PDF File Protector ships an update every 2 months, and 有料二维码 weekly. Most recently, PDF File Protector was updated on October 12, 2026 and 有料二维码 on September 21, 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.*