# PDF Watermark Expert vs Authenticator App

The clearest difference is iOS requirement: PDF Watermark Expert at 12.0 against Authenticator App's 16.0. On price, ads, 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 Authenticator App sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PDF Watermark Expert | Authenticator App |
| --- | --- | --- |
| 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 | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 159 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) | [LAMMA TECH COMPANY LIMITED](https://appshunter.io/developer/1773108750) |

## 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 |


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-otp/id6764511220)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $6.99 | per month |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is PDF Watermark Expert free?

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

### Is Authenticator App free?

Authenticator App is free to download, with in-app purchases available.

### Do PDF Watermark Expert or Authenticator App have ads?

Both PDF Watermark Expert and Authenticator App show ads.

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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.*