# PDF Watermark Expert vs Smash PDF

The clearest difference is ads: Smash PDF at none against PDF Watermark Expert's shown. Smash PDF also leads on update cadence (every 6 days vs every 4 months). PDF Watermark Expert's advantage is iOS requirement (12.0 vs 15.6). On price, in-app purchases 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 and Smash PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF Watermark Expert ships an update every 4 months, Smash PDF every 6 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PDF Watermark Expert | Smash PDF |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 38 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) | [chaman chlach](https://appshunter.io/developer/907477610) |

## 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 |


### Smash PDF

[App page](https://appshunter.io/ios/app/smash-pdf/id6752800566)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smash PDF Pro Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is PDF Watermark Expert free?

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

### Is Smash PDF free?

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

### Do PDF Watermark Expert or Smash PDF have ads?

PDF Watermark Expert shows ads; Smash PDF does not.

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

PDF Watermark Expert ships an update every 4 months, and Smash PDF every 6 days. Most recently, PDF Watermark Expert was updated on October 30, 2026 and Smash PDF on October 28, 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.*