# PDFer vs 鱼符 Yulyph

The clearest difference is update cadence: 鱼符 Yulyph at weekly against PDFer's every 2 months. PDFer's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

PDFer ships an update every 2 months, 鱼符 Yulyph weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PDFer | 鱼符 Yulyph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/pdfer-water-marker-tool/id1291642190/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 13 MB | 4 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [chenghui Duan](https://appshunter.io/developer/1611953038) | [佩珅 李](https://appshunter.io/developer/1887198953) |

## What reviewers say

### PDFer

[App page](https://appshunter.io/ios/app/pdfer-water-marker-tool/id1291642190)

Easily add text or image watermarks to your PDF documents. Customize watermark appearance with adjustable color and transparency. Import PDFs from other apps or your computer.

**Highlights:** Import PDFs from other apps, Upload PDFs from computer, Add text watermarks, Add image watermarks, Customize watermark color, Adjust watermark transparency

**Features:** macOS Compatibility

**In-app purchases:** none


### 鱼符 Yulyph

[App page](https://appshunter.io/ios/app/yulyph/id6761293030)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDFer free?

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

### Is 鱼符 Yulyph free?

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

### Do PDFer or 鱼符 Yulyph have ads?

Neither PDFer nor 鱼符 Yulyph shows ads.

### Which is updated more often, PDFer or 鱼符 Yulyph?

PDFer ships an update every 2 months, and 鱼符 Yulyph weekly. Most recently, PDFer was updated on November 3, 2026 and 鱼符 Yulyph on October 31, 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.*