NetBuddy IP Subnet Calculator

All-in-one network toolkit

$1.99 · Designed for iPad. Not verified for macOS.

Master subnetting with IPv4/IPv6 calculators, quiz games, VLAN manager, MAC lookup & port reference. Sync your data across devices with Solid Pod. Whether you're a network engineer, IT professional, student, or networking enthusiast, NetBuddy is your essential companion for subnet calculations, network planning, and learning. This powerful yet intuitive app combines professional-grade tools with educational features to help you master networking concepts. IPv4 & IPv6 SUBNET CALCULATORS • Calculate network details instantly with support for both IPv4 and IPv6 • View Network ID, Broadcast Address, and usable host ranges • Display subnet masks, wildcard masks, and CIDR notation • Toggle between decimal and binary formats • Detect your device's current IP configuration • Smart CIDR range suggestions based on IP address classes • Save frequently used subnet configurations with custom labels INTERACTIVE QUIZ GAMES Test and improve your networking knowledge with engaging quiz games: • IPv4 Quiz: Master subnetting calculations, host counts, and network addresses • IPv6 Quiz: Practice address types, compression, expansion, and prefix lengths • 10 random questions per game with immediate feedback • Track your scores and identify areas for improvement • Perfect for certification prep (CCNA, Network+, etc.) VLAN MANAGEMENT • Create and manage VLANs (1-4094) • Organize VLANs with custom names and descriptions • View reserved VLAN information • Save VLAN configurations for quick reference • Export and import VLAN data MAC ADDRESS LOOKUP • Identify device manufacturers from MAC addresses • Support for multiple MAC address formats (colon, dash, dot notation) • Automatically detect your device's MAC address • Fast OUI database lookup PORT REFERENCE GUIDE • Quick reference for common network ports • Search by port number or service name • View protocol information (TCP/UDP) • Learn what each port is used for • Covers well-known, registered, and dynamic port ranges CLOUD SYNC WITH SOLID POD • Sync your saved subnets across all your devices • Privacy-focused: you own your data in your personal Solid Pod • Automatic conflict resolution when editing on multiple devices • Works with Inrupt PodSpaces and other Solid providers • Optional - use the app fully offline if preferred COMPREHENSIVE HELP SECTION • Step-by-step guides for every feature • Networking concepts explained clearly • Tips and best practices • Troubleshooting assistance • Perfect for learning and reference DESIGNED FOR PROFESSIONALS & STUDENTS NetBuddy is perfect for: • Network Engineers planning and documenting networks • IT Professionals troubleshooting connectivity issues • Students studying for networking certifications • Educators teaching networking concepts • Anyone learning about IP addressing and subnetting KEY HIGHLIGHTS -Clean, intuitive interface with dark mode support -No ads or subscriptions - pay once, use forever -Works completely offline (except cloud sync) -Regular updates with new features -Built with privacy in mind -Supports both iPhone and iPad WHAT'S NEW IN VERSION 1.3 • Added interactive IPv6 quiz game • New comprehensive Help section • Enhanced dark mode support throughout the app • Improved Solid Pod conflict resolution • Bug fixes and performance improvements Transform the way you work with networks. Download NetBuddy today and take your networking skills to the next level!

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We're excited to bring you our biggest update yet, packed with powerful new features to enhance your networking experience! INTERACTIVE QUIZ GAMES Learn networking by doing! We've added two engaging quiz games to help you master subnetting: • IPv4 Quiz: Test your knowledge of subnet calculations, network addresses, broadcast addresses, host counts, and more. Perfect for CCNA and Network+ certification prep! • IPv6 Quiz: Practice IPv6 address types, compression/expansion rules, network prefixes, and prefix lengths. Master the future of networking! Each quiz features 10 random questions with immediate feedback, visual indicators for correct/incorrect answers, and performance scoring. Whether you're studying for certifications or just want to sharpen your skills, these quizzes make learning fun and effective. COMPREHENSIVE HELP SECTION Never feel lost again! We've added a complete Help section with: • Step-by-step guides for every feature • Detailed explanations of networking concepts • CIDR notation references and examples • IPv6 address type breakdowns • Solid Pod setup and troubleshooting • Tips and best practices for network professionals Perfect for both beginners learning the basics and experts who need a quick reference. INTELLIGENT SOLID POD SYNC Your data, your control! Enhanced cloud synchronization features: • Automatic conflict detection when editing on multiple devices • Smart merge options: Keep Local, Keep Pod, or Merge Both (Requires your own Solid Pod) • Version tracking prevents data loss • Zero-data-loss migration for existing users • Real-time sync status indicators Your saved subnets stay in sync across all your devices while you maintain complete ownership of your data. ENHANCED DARK MODE We've improved dark mode throughout the app for better readability and reduced eye strain: • Quiz interfaces now properly adapt to dark mode • Better contrast in all lighting conditions • Consistent theming across all tabs • Easier on the eyes during late-night troubleshooting sessions BUG FIXES & IMPROVEMENTS • Fixed timing issues with Solid Pod storage discovery • Improved data persistence during authentication • Enhanced error handling and user feedback • Performance optimizations throughout the app • Updated documentation with latest features Your feedback drives our development! If you love NetBuddy, please leave us a review. Have suggestions? Contact us through the App Store or our support channels. Happy subnetting!

The developer, Rick Bodnar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Rick Bodnar
    Size
    • 1.4 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 18.2 or later.
    • iPhone
      Requires iOS 18.2 or later.
    • iPad
      Requires iPadOS 18.2 or later.
    • Mac
      Requires macOS 15.2 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.2 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026