SubnetBuddy vs SubnetMaster

SubnetBuddy is a fast, offline subnet calculator and network planning tool built for IT professionals, network engineers, students, and anyone studying for their CCNA, CompTIA Network+, or just needs to crunch CIDR notation on the fly. No internet required. No ads. No account needed. Just open the app and start calculating. SUBNET CALCULATOR • Enter any IP address and CIDR prefix (e.g. 192.168.1.0/24) • Instantly see network address, broadcast address, first and last usable host • View total hosts, usable hosts, and wildcard mask • Get the next sequential subnet with one tap • Supports all prefix lengths from /0 to /32 MASK CONVERTER • Convert between CIDR notation, dotted decimal, and binary • Enter a prefix length and see all three formats instantly • Quick-reference for common subnet masks • Perfect for exam prep and on-the-job lookups VLAN PLANNER • Plan multiple VLANs with custom names and sizes • Set a base network and SubnetBuddy calculates non-overlapping subnets for each VLAN • See network range, gateway, CIDR, and host count per VLAN • Great for designing office networks, lab environments, and homework assignments IP VISUALIZER • Enter a CIDR block and see a visual map of the IP address space • Color-coded grid shows used vs. available addresses • Instantly understand how big (or small) your subnet really is • Tap any cell to see the full IP address TERMINAL-STYLE DESIGN • Dark theme with VibeCMD's signature hacker-green aesthetic • Monospace fonts and command-line inspired interface • Clean, distraction-free layout built for speed • Easy on the eyes during late-night study sessions WORKS COMPLETELY OFFLINE • Zero network calls — all calculations happen on-device • No account required — open and use immediately • No data collection — your network plans stay on your phone • Lightning fast — results appear as you type BUILT FOR REAL PEOPLE • IT professionals doing quick subnet math on-site • Students studying for CCNA, Network+, or any networking exam • Homelab enthusiasts planning their network segments • DevOps engineers carving up VPC address spaces • Anyone who's tired of Googling "what is /22 in dotted decimal" SubnetBuddy is a utility tool for network address calculations. It does not connect to or scan any networks.

SubnetMaster is the definitive toolkit for IT professionals, network engineers, and students preparing for their CCNA, CompTIA Network+, or university exams. Say goodbye to manual binary math and tedious scratchpad calculations! Whether you are architecting a complex enterprise network or just learning the basics of IP addressing, SubnetMaster provides lightning-fast, error-free results right in your pocket. KEY FEATURES: • Advanced VLSM & FLSM Calculators: Instantly break down networks with Variable Length Subnet Masking or standard Classful subnetting. • Comprehensive Network Details: View your Network ID, Broadcast Address, Usable Host Ranges, and CIDR notation at a glance. • Export & Share Reports: Generate professional PDF and CSV reports of your custom subnet designs to share with your team or attach to your IT documentation. • Interactive Training Modes: Sharpen your binary math and subnetting skills with practice scenarios designed to help you ace your certification exams. • IPv4 & IPv6 Support: Future-proof your workflow with full support for both addressing protocols. SUBNETMASTER PRO: Upgrade to SubnetMaster Pro to unlock the ultimate networking experience! Premium users get unlimited VLSM/FLSM designs, unlimited PDF/CSV exports, advanced IPv6 features, and priority support. Choose from flexible Monthly, Annual, or one-time Lifetime unlock options. Stop guessing and start designing. Download SubnetMaster today and make IP subnetting the easiest part of your job! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/