# PDF Protector vs Nerkh Sanj (نرخ سنج)

The clearest difference is in-app purchases: Nerkh Sanj (نرخ سنج) at none against PDF Protector's 3. Nerkh Sanj (نرخ سنج) also leads on iOS requirement (14.0 vs 18.0). PDF Protector's advantage is ratings volume (4 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. PDF Protector sells 3 one-off in-app purchases. Nerkh Sanj (نرخ سنج) asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PDF Protector against 5.0 for Nerkh Sanj (نرخ سنج). Both are backed by a comparable volume of ratings — 4 and 1 respectively.

PDF Protector ships an update every 3 weeks, Nerkh Sanj (نرخ سنج) monthly. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | PDF Protector | Nerkh Sanj (نرخ سنج) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/pdf-protector/id566631581/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/nerkh-sanj/id6778168608/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 71.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 9 MB | 24 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Witt](https://appshunter.io/developer/1438848391) | [HAMED SAGHAFI](https://appshunter.io/developer/6777942615) |

## What reviewers say

### PDF Protector

[App page](https://appshunter.io/ios/app/pdf-protector/id566631581)

Secure your PDF documents with robust password protection and encryption. This tool allows you to restrict printing, copying, and content extraction, while also enabling decryption of protected files. Protect sensitive information quickly and reliably.

**Highlights:** Encrypt PDF files with password protection, Restrict printing and copying, Decrypt protected PDFs, Create reusable security profiles, Protect multiple files at once, Fast and intuitive interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version for iPhone & iPad | $4.99 | one-time |
| Full Version for Mac | $9.99 | one-time |
| Full Version for All Devices | $12.99 | one-time |


### Nerkh Sanj (نرخ سنج)

[App page](https://appshunter.io/ios/app/nerkh-sanj/id6778168608)

This Persian-language tool helps users calculate and analyze gold prices for various types of gold. It offers a clear, step-by-step breakdown of the final price and calculation process, useful for both buyers and sellers.

**Highlights:** Gold price calculation, Analysis of gold prices, Supports jewelry gold, Supports melted gold, Market quotation analysis, Step-by-step breakdown

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Protector free?

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

### Is Nerkh Sanj (نرخ سنج) free?

Nerkh Sanj (نرخ سنج) is free to download, with no in-app purchases.

### Which has better reviews, PDF Protector or Nerkh Sanj (نرخ سنج)?

PDF Protector and Nerkh Sanj (نرخ سنج) are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do PDF Protector or Nerkh Sanj (نرخ سنج) have ads?

Neither PDF Protector nor Nerkh Sanj (نرخ سنج) shows ads.

### Which is updated more often, PDF Protector or Nerkh Sanj (نرخ سنج)?

PDF Protector ships an update every 3 weeks, and Nerkh Sanj (نرخ سنج) monthly. Most recently, PDF Protector was updated on October 9, 2026 and Nerkh Sanj (نرخ سنج) on October 1, 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.*