PaperDrawer vs Subnet CIDR Pro

PaperDrawer turns paper into a private, searchable archive on iPhone and iPad. One purchase. No subscription. No PaperDrawer account. Scan receipts, statements, forms, letters, and notes with Apple's native document camera. PaperDrawer recognizes the text on your device, creates useful document details, and makes every saved page easy to find again. PRIVATE BY DESIGN Document scanning, OCR, organization, and search happen on your device. PaperDrawer has no account, advertising, analytics, tracking, or developer-operated document server. Search stays inside PaperDrawer; the app does not submit library records to system search. Copies you keep in Files or iCloud Drive may be indexed by Apple according to your settings. SEARCH THE PAGE, NOT JUST THE TITLE Find documents using words that appear anywhere in the recognized text, as well as titles, categories, summaries, and keywords. KNOW WHERE EVERY COPY LIVES PaperDrawer clearly shows when a document is searchable and when its Files copy has been created. Each export includes the scanned page images, recognized text, and useful document information. BUILT FOR APPLE DEVICES PaperDrawer uses native Apple frameworks for document capture, on-device text recognition, storage, and optional private iCloud sync. No third-party runtime SDKs are included. Optional iCloud features are controlled by your Apple Account settings and handled by Apple. OCR results can contain mistakes, so compare important information with the original document.

Subnet CIDR Pro is a clean, lightning-fast, and precise IPv4 subnet calculator and visual VLSM planner designed for network engineers, sysadmins, cloud architects, and IT students. Built natively for iOS with a focus on speed and clarity, it eliminates the guesswork from IP allocation and network boundary calculations. Whether you are configuring router interfaces in the datacenter, planning VPC subnets in AWS/Azure, or studying for Cisco CCNA/CCNP certifications, Subnet CIDR Pro delivers instant, accurate results. KEY FEATURES: 1. Instant IPv4 & CIDR Calculation • Real-time calculations as you type IP address or adjust CIDR prefix (/0 to /32). • Full breakdown: Subnet Mask, Wildcard Mask, Network Address, Broadcast Address, First/Last Usable Host, and Total Usable Hosts. • RFC 3021 Compliant: Correct handling for /31 point-to-point links (2 usable hosts) and /32 single host routing. • Binary Visualization: Clear binary breakdown highlighting network and host bit boundaries. • One-tap copying for any calculated value or complete CIDR summary. 2. Visual VLSM Subnet Planner • Automatically allocate Variable Length Subnet Masks (VLSM) from any parent IPv4 block. • Add custom subnet requirements with host counts and descriptive names. • Optimal subnet block sorting to eliminate IP space fragmentation. • Detect allocation overflows and subnet overlaps instantly. • Export or copy your complete allocation table with one tap. 3. Complete CIDR & Mask Reference • Interactive /0 to /32 quick-lookup cheat sheet. • Displays subnet masks, wildcard masks, total addresses, and usable host counts at a glance. • Instant search to quickly verify subnet boundaries. PROFESSIONAL & PRIVACY-FIRST: • 100% Offline & Self-Contained: All calculations run locally on your device. • Zero Ads & Zero Tracking: No analytics, no third-party SDKs, and no telemetry. • No In-App Purchases & No Subscriptions: One-time purchase unlocks lifetime complete access. • Native Dark Mode UI optimized for field diagnostics and server room environments. LEGAL & PRIVACY: • Privacy Policy: https://subnet.opshome.run/privacy/ • Terms of Use: https://subnet.opshome.run/terms/ • Support & Feedback: https://subnet.opshome.run/support/ Designed with pride by OpsHome for network practitioners who value precision, simplicity, and privacy.