Comparison

RFCReader Pro vs ZF RC

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.ย  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

About

ZF RC

Features
Read full description

"Deze app voor speelgoeddrones biedt een geheel nieuwe kijk op de wereld. De ingebouwde camera streamt live beelden naar uw smartphone. Kernfuncties: 1. Live beeldstreaming, fotografie, opname en terugkijken; 2. Meerdere speelse besturingsmodi; 3. Diverse filteropties voor levendige visuele effecten."

Screenshots

RFCReader Pro4 screens
ZF RC4 screens

Verdict

The call

The clearest difference is price: ZF RC at Free against RFCReader Pro's $1.99. ZF RC also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (13.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

RFCReader Pro ships an update every 3 months, ZF RC fortnightly. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

Scorecard3 real differences ยท 5 level
RFCReader Pro versus ZF RC: the parameters behind the verdict, then further details
ParameterRFCReader ProZF RC
Price$1.99Free โ€” better
Positive reviews62.5% of reviewsโ€”
Update frequencyEvery 3 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidโ€”
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.013.0 โ€” better
Further details โ€” not scored
Size3 MB33 MB
Age rating4++4
Developer้ฃž ้พ™shenzhen cooingdv technology co.,ltd.

In-app purchases

None

RFCReader Pro

No in-app purchases

None

ZF RC

No in-app purchases

Questions

Is RFCReader Pro free?
RFCReader Pro costs $1.99, with no in-app purchases.
Is ZF RC free?
ZF RC is free to download, with no in-app purchases.
Do RFCReader Pro or ZF RC have ads?
Neither RFCReader Pro nor ZF RC shows ads.
Which is updated more often, RFCReader Pro or ZF RC?
RFCReader Pro ships an update every 3 months, and ZF RC fortnightly. Most recently, RFCReader Pro was updated on October 2, 2026 and ZF RC on September 25, 2026.

Other comparisons