# Avi Pdf Pro vs PDF Watermark Assistant

The clearest difference is price: Avi Pdf Pro at Free against PDF Watermark Assistant's $0.99. Avi Pdf Pro also leads on update cadence (every 2 months vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Avi Pdf Pro is free to download; PDF Watermark Assistant costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Avi Pdf Pro ships an update every 2 months, PDF Watermark Assistant every 5 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Avi Pdf Pro | PDF Watermark Assistant |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (8 ratings)](https://appshunter.io/ios/app/avi-pdf-pro/id1469857534/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 40 MB | 5 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Navjot Singh](https://appshunter.io/developer/1469857533) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### Avi Pdf Pro

[App page](https://appshunter.io/ios/app/avi-pdf-pro/id1469857534)

This utility app offers a comprehensive suite of tools for managing PDF files. Easily create, merge, lock, unlock, and watermark PDFs using images or your phone's camera. Your files are processed securely and deleted from servers after completion.

**Highlights:** Create PDF files, Merge PDF files, Lock PDF files, Unlock PDF files, Watermark PDF files, Use phone images or camera

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

**In-app purchases:** none


### PDF Watermark Assistant

[App page](https://appshunter.io/ios/app/pdf-watermark-assistant/id6747923103)

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

**In-app purchases:** none


## Frequently asked questions

### Is Avi Pdf Pro free?

Avi Pdf Pro is free to download, with no in-app purchases.

### Is PDF Watermark Assistant free?

PDF Watermark Assistant costs $0.99, with no in-app purchases.

### Do Avi Pdf Pro or PDF Watermark Assistant have ads?

Neither Avi Pdf Pro nor PDF Watermark Assistant shows ads.

### Which is updated more often, Avi Pdf Pro or PDF Watermark Assistant?

Avi Pdf Pro ships an update every 2 months, and PDF Watermark Assistant every 5 months. Most recently, Avi Pdf Pro was updated on November 3, 2026 and PDF Watermark Assistant on October 30, 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.*