# PDF Watermark Expert vs FA One

The clearest difference is in-app purchases: FA One at none against PDF Watermark Expert's 3. FA One also leads on ads (none vs shown) and update cadence (every 8 days vs every 4 months). PDF Watermark Expert's advantage is iOS requirement (12.0 vs 16.6). On price and device support there is nothing between them.

Both are free to download. PDF Watermark Expert sells 3 in-app purchases, starting at $2.99 per 7 days. FA One asks for nothing beyond the download.

PDF Watermark Expert ships an update every 4 months, FA One every 8 days. The most recent releases landed on October 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PDF Watermark Expert | FA One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-watermark-expert/id6737170415/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 99 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) | [Flick2Know Technologies Private Limited](https://appshunter.io/developer/431490133) |

## What reviewers say

### PDF Watermark Expert

[App page](https://appshunter.io/ios/app/pdf-watermark-expert/id6737170415)

Easily add custom text watermarks to your PDF documents for enhanced security and branding. Personalize fonts, colors, transparency, and position to protect your files from misuse and plagiarism. The app offers a user-friendly interface and cross-platform compatibility for seamless document workflow.

**Highlights:** Add custom text watermarks, Full watermark customization, Secure PDF files, User-friendly interface, Cross-platform compatibility, Fast processing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Week | $2.99 | per 7 days |
| Premium Month | $7.99 | per month |
| Premium Year | $44.99 | per year |


### FA One

[App page](https://appshunter.io/ios/app/fa-one/id6751401460)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Watermark Expert free?

PDF Watermark Expert is free to download, with in-app purchases available.

### Is FA One free?

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

### Do PDF Watermark Expert or FA One have ads?

PDF Watermark Expert shows ads; FA One does not.

### Which is updated more often, PDF Watermark Expert or FA One?

PDF Watermark Expert ships an update every 4 months, and FA One every 8 days. Most recently, PDF Watermark Expert was updated on October 30, 2026 and FA One on October 8, 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.*