Network & System Admin Toolkit vs Subnet CIDR Pro

ForgeNetzwork is a complete Network & System Administration Toolkit for iOS and macOS. Designed for network engineers, system administrators, IT professionals, and students, it brings together powerful tools for subnet planning, network diagnostics, LAN analysis, and SSH system administration - all in one app, with no account or cloud dependency. SSH & SYSTEM ADMINISTRATION • SSH Terminal - Connect directly to SSH-enabled systems with a full interactive shell • Persistent Shell Sessions - Working directories, environment variables, and shell state persist just like in a native terminal • ANSI Color Support - Display colored prompts, command output, and syntax highlighting • Terminal Controls - Quick access to Tab, Esc, Ctrl+C, Ctrl+D, Ctrl+L, and arrow keys • Hosts Manager - Save and organize multiple SSH hosts for quick access • Command Reference - Search 40+ Unix/Linux commands with clear descriptions and one-tap copy • Secure Direct Connections - SSH traffic goes directly between your device and the host you configure, with no third-party server in between SUBNET CALCULATOR & PLANNING • Subnet Calculator - Compute network address, broadcast, host range, subnet mask, and wildcard from any IP/CIDR • Subnet Splitter - Divide any network into equal subnets by prefix or count • VLSM - Variable Length Subnet Masking for efficient IP allocation • IP Range to CIDR - Convert arbitrary IP ranges to minimal CIDR notation • Wildcard Calculator - Generate wildcard masks for ACLs and firewall rules • Subnet Reference Table - Quick-reference chart for /8 through /32 prefixes • Route Summarization - Aggregate multiple routes into a single summary prefix NETWORK DIAGNOSTICS • Ping - ICMP echo with RTT statistics, packet loss, and min/avg/max reporting • Traceroute - Visualize the full path to any host with per-hop latency • Port Scanner - Probe common TCP ports on a target • Network Monitor - Live dashboard tracking latency to multiple hosts with ISP information LAN & DEVICE DISCOVERY • LAN Scanner - Discover devices on your local network with IP, hostname, and open port detection • Wake on LAN - Send magic packets to wake compatible machines • Network Info - View your current IP, gateway, DNS, and connection details DNS & WEB TOOLS • DNS Benchmark Measure UDP latency to major DNS resolvers including Google, Cloudflare, Quad9, OpenDNS, AdGuard, and NextDNS • DNS Lookup - Query A, AAAA, MX, TXT, CNAME, and other records for any domain • WHOIS Lookup - Retrieve WHOIS information for domains and IP addresses • SSL Inspector - Inspect TLS certificate details, expiration dates, and issuer chains for HTTPS hosts IP UTILITIES • IP Converter - Convert IPv4 addresses between dotted-decimal, binary, and hexadecimal • Calculation History - Review and re-run previous subnet calculations BUILT FOR IT PROFESSIONALS • Native experience across iPhone, iPad, and macOS • Home Screen and Lock Screen widgets for quick network status • Optimized sidebar navigation for iPad and Mac • Terminal accent color customization • No account, no subscription, and no cloud dependency • Available in English, Spanish,German and Simplified and Traditional Chinese. Whether you're administering systems over SSH, designing network architectures, troubleshooting connectivity, managing your local network, or studying networking and system administration, ForgeNetzwork puts the tools you need in one place.

Subnet CIDR Pro is a focused, offline-first network calculator and VLSM planner built for network engineers, sysadmins, homelab users, and IT students. From quick /30 interface checks to full multi-VLAN allocation plans, get accurate IPv4 subnetting and address tooling directly on your iPhone and iPad—with zero tracking, zero ads, and 100% local calculation. IPv4 & CIDR CALCULATOR • Full Range Support: Calculate any prefix from /0 to /32 • Essential Telemetry: Network, broadcast, subnet mask, wildcard mask, and usable host ranges • Host Capacity: Instant breakdown of total addresses vs. usable host capacity • Modern Link Handling: Full support for /31 point-to-point links (RFC 3021) and /32 host routes • Binary Inspection: Visualize network vs. host bits in clear binary layout • Mask Conversion: Seamless conversion between CIDR prefixes, subnet masks, and wildcard masks • One-Tap Copy: Copy individual values or complete formatted network summaries VLSM NETWORK PLANNING • Requirement-Driven Allocation: Subnet a parent IPv4 block based on exact host requirements • VLAN & Naming: Assign custom network labels and VLAN IDs per subnet • Growth Headroom: Configurable growth reserve percentage per allocation • Gateway Reservation: Optional automatic reservation for default gateway addresses • Space Optimization: View allocated CIDRs alongside remaining unallocated blocks • Overflow Warnings: Instant alerts when requirements exceed parent network capacity ADDRESS TOOLS & IP MATH • Subnet Compare: Test two subnets for containment, overlap, equality, or isolation • IP Membership: Verify instantly whether an IPv4 address belongs to a target network • Range to CIDR: Convert arbitrary start/end IP ranges into minimal exact CIDR blocks • Subnet Splitting: Break down any network into equal-sized child subnets • Supernetting: Summarize adjacent or overlapping subnets into clean aggregation blocks PROJECT WORKSPACE & EXPORT • Project History: Save named planning projects, reopen, rename, or duplicate anytime • Auto-Save: Automatically preserves your current planning draft • Data Export: Export complete subnet plans and available address blocks as CSV • Clipboard Sharing: One-tap copy for formatted plain-text documentation CIDR QUICK REFERENCE TABLE • Interactive reference matrix for all prefixes (/0 to /32) • Searchable by prefix, dotted-decimal mask, wildcard mask, or usable host count • Fast reference copying for switch and firewall configuration DESIGNED FOR iOS & iPadOS • High-contrast dark interface tailored for server rooms and night operations • Adaptive iPad workspace: side-by-side inputs, live results, and wide allocation tables • Localized in 13 languages: English, Simplified & Traditional Chinese, German, French, Japanese, Korean, Italian, Spanish, Brazilian Portuguese, Arabic, Dutch, and Turkish 100% OFFLINE & PRIVATE • Calculations run purely on your device • No account required, no telemetry SDKs, no ads, and no in-app purchases Terms of Use: https://subnet.opshome.run/terms/ Privacy Policy: https://subnet.opshome.run/privacy/ Support: https://subnet.opshome.run/support/