# PDF Watermark Expert vs SMIMER

The clearest difference is in-app purchases: SMIMER at none against PDF Watermark Expert's 3. SMIMER also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 4 months). On price, device support and iOS requirement 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. SMIMER asks for nothing beyond the download.

PDF Watermark Expert ships an update every 4 months, SMIMER every 2 weeks. The most recent releases landed on July 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PDF Watermark Expert | SMIMER |
| --- | --- | --- |
| 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 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 37 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) | [Surat Municipal Corporation(SMC)](https://appshunter.io/developer/766167355) |

## 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 |


### SMIMER

[App page](https://appshunter.io/ios/app/smimer/id6744577917)

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

**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 SMIMER free?

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

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

PDF Watermark Expert shows ads; SMIMER does not.

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

PDF Watermark Expert ships an update every 4 months, and SMIMER every 2 weeks. Most recently, PDF Watermark Expert was updated on July 17, 2026 and SMIMER on September 20, 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.*