# RFCReader Pro vs File Guard Pro

The clearest difference is price: File Guard Pro at Free against RFCReader Pro's $1.99. File Guard Pro also leads on iOS requirement (15.6 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

File Guard Pro is free to download; RFCReader Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RFCReader Pro ships an update every 3 months, File Guard Pro every 2 months. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | RFCReader Pro | File Guard Pro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/file-guard-pro/id6742727006/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 2 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [飞 龙](https://appshunter.io/developer/965611281) | [斌 虞](https://appshunter.io/developer/561889393) |

## What reviewers say

### RFCReader Pro

[App page](https://appshunter.io/ios/app/rfcreader-pro/id1036461920)

Access and read technical internet standards documents efficiently. Features include keyword search, bookmarking, text styling, and offline reading. Supports PDF and HTML formats with navigation aids.

**Highlights:** List all RFC documents, Search RFC by keywords or number, Add RFC to favorites, Mark and style text, Offline RFC reading, Read RFC in PDF and HTML formats, Navigate via Table of Contents and thumbnails

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

**In-app purchases:** none


### File Guard Pro

[App page](https://appshunter.io/ios/app/file-guard-pro/id6742727006)

Securely encrypt and decrypt your files with this powerful cryptography tool. It offers a user-friendly interface for protecting confidential information quickly and efficiently. Based on a customized, reliable algorithm, it provides stronger security than many public tools.

**Highlights:** File encryption, File decryption, Customized cryptography algorithm, User-friendly interface, Fast performance, Confidential information security

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RFCReader Pro free?

RFCReader Pro costs $1.99, with no in-app purchases.

### Is File Guard Pro free?

File Guard Pro is free to download, with no in-app purchases.

### Do RFCReader Pro or File Guard Pro have ads?

Neither RFCReader Pro nor File Guard Pro shows ads.

### Which is updated more often, RFCReader Pro or File Guard Pro?

RFCReader Pro ships an update every 3 months, and File Guard Pro every 2 months. Most recently, RFCReader Pro was updated on October 2, 2026 and File Guard Pro on October 13, 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.*