# Avi Pdf Pro vs lock pdf | unlock pdf expert

The clearest difference is device support: Avi Pdf Pro at 3 against lock pdf | unlock pdf expert's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Avi Pdf Pro | lock pdf | unlock pdf expert |
| --- | --- | --- |
| Price | Free | Free |
| 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 | — |
| Monetization | Free | — |
| Size | 40 MB | 1 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Navjot Singh](https://appshunter.io/developer/1469857533) | [逢信 谭](https://appshunter.io/developer/1825263250) |

## 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


### lock pdf | unlock pdf expert

[App page](https://appshunter.io/ios/app/lock-pdf-unlock-pdf-expert/id6749227930)

**Features:** macOS Compatibility

**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 lock pdf | unlock pdf expert free?

lock pdf | unlock pdf expert is free to download, with no in-app purchases.

### Do Avi Pdf Pro or lock pdf | unlock pdf expert have ads?

Neither Avi Pdf Pro nor lock pdf | unlock pdf expert shows 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.*