Subnet Mask vs NetBuddy IP Subnet Calculator

This is the keypad for subnet mask. It has keys of prefix (CIDR notation). The subnet mask and number of host addresses are shown by single tap. Keys are manipulated also by swipe. It behaves like a slider. This App can be mutated to the keypad for wildcard mask. It shows wild card mask and number of addresses.

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!