RFCReader Pro vs File Guard Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RFCReader Pro
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.
- 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
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Requests for Comments (RFC) document series contain technical and organizational notes about the Internet. RFC Reader plus is a tool which can provide user a more efficient way to read the RFC documents. Difference between trial version and full functional version: Features for RFC Reader plus trial version and full functional version are almost the same, except that some advance feature in trial version can be used with limitation. All features below are available for try with limited times with trial version and are fully supported by full functional version if user purchased the product in the app. 1. List all RFC documents 2. Search RFC File by Keywords or RFC number 3. Add to favorite for the interested RFC 4. Support marking text with color when reading in text format 5. Support adding Bold, Itatic and Underline styles to RFC text when reading in text format 6. Support changing default Font name and Font size for RFC text reading 7. Support fast navigating to last reading position and can go back and forward several times 8. Support fast navigating with Table Of Contents (TOC) 9. Offline RFC reading: Once you read it once, it will be cached locally 10. Save your changes to the document in Document folder 11.Support both Landscape and Portrait reading mode on all supported devices. 12. Support cleaning up cached files 13. Support search by keywords in Text format RFC page and navigate to the found results 14. Support read RFC in PDF format 15. Support searching RFC content when reading in PDF format 16. Support navigate RFC content through Table Of Content when reading in PDF format 17. Support navigate RFC content through PDF thumbnail 18. Support view RFC content in thumbnail grid view 19. Support read RFC in HTML format 20. Support navigate back and forth when reading in HTML format 21.Support navigate through Table Of Content when reading in HTML format for some RFCs 22. Support add to favorite RFC list when reading both in PDF format and HTML format 23. Support system Dark Mode
File Guard Pro
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.
- File encryption
- File decryption
- Customized cryptography algorithm
- User-friendly interface
- Fast performance
- Confidential information security
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This is the iOS version of File Encryptor Pro, the app is a small general purpose cryptography tool that can be used to encrypt and decrypt files. The app was based on a customised stable and reliable cryptography algorithm, that guarantees it more stronger than well-known public cryptography algorithm based tools, and helps user ensure confidential informations is secure, easy to use and fast. Only requires several taps in daily usage scenarios.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RFCReader Pro | File Guard Pro |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.5 (2 ratings) — better |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 飞 龙 | 斌 虞 |
Customer experience
RFCReader Pro
File Guard Pro
In-app purchases
RFCReader Pro
No in-app purchases
File Guard Pro
No in-app purchases
Questions
Is RFCReader Pro free?
Is File Guard Pro free?
Do RFCReader Pro or File Guard Pro have ads?
Which is updated more often, RFCReader Pro or File Guard Pro?
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