RFCReader Pro vs HelvetiKit

Requests for Comments (RFC) document series contain technical and organizational notes about the Internet. RFC Reader Pro is a tool which can provide user a more efficient way to read the RFC documents. Features for RFC Reader Pro are: 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 5. Support adding Bold, Itatic and Underline styles to RFC text 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 Version 1.1.0 13. Support iOS 9 Version 1.3.0 14. Add 'Search' feature: user can search by keyword in the reading page and can navigate the RFC page by the list of results Version 3.0.1 1. Support read RFC in PDF format 2. Support searching RFC content when reading in PDF format 3. Support navigate RFC content through Table Of Content when reading in PDF format 4. Support navigate RFC content through PDF thumbnail 5. Support view RFC content in thumbnail grid view 6. Support read RFC in HTML format 7. Support navigate back and forth when reading in HTML format 8.Support navigate through Table Of Content when reading in HTML format for some RFCs 9. Support add to favorite RFC list when reading both in PDF format and HTML format 10. Update RFC database to support up to RFC9083

HelvetiKit is a clean, fast, on‑device toolbox for everyday development tasks. No web round‑trips, no clutter — just the utilities you reach for all the time, in one place. What you can do • QR Tools – Generate high‑quality QR codes from any text or URL – Scan with the camera or import photos to decode existing codes – Save generated QR images to your Photos • Color – Convert between HEX ⇄ RGB ⇄ HSL – Pick colors with the system color picker and copy code snippets (SwiftUI/UIColor) • JSON – Pretty‑print, minify, validate – Sort keys, handle fragments, and even normalize curly quotes • JWT Decode – Safely decode header/payload (Base64URL) – Pretty‑printed JSON when available • Text Case – camelCase, PascalCase, UPPERCASE, lowercase • UUID – Generate v4 UUIDs in bulk • Hash – MD5, SHA‑1/256/512 from any input • Base64 / URL Encode – Encode/Decode with sensible defaults • Timestamp – Convert Unix timestamps ⇄ Date (ms supported) • Regex – Test and replace with instant feedback Designed for speed and privacy • On‑device: Your input stays on your device; nothing is uploaded. • Thoughtful UI: Compact layout, keyboard‑friendly editing, copy helpers. • iPhone + iPad: Landscape support and adaptive layouts. • Localization: English and Simplified Chinese. Go Pro (optional) Unlock unlimited runs when you need heavy use. HelvetiKit remains fully usable for quick tasks in the free tier. We’re actively improving HelvetiKit — if there’s a converter or utility you’d love to see, let us know!