SubnetCal vs Recon

SubNetCalc is your all-in-one subnet calculator for IPv4 and IPv6. Whether you're a networking student or a seasoned IT professional, SubNetCalc helps you calculate network ranges, broadcast addresses, and host capacity using CIDR notation. With real-time validation and educational guides, you’ll master subnetting in no time. Upgrade to premium for IPv6 support, subnet visualization, PDF/CSV export, iCloud sync, and scanning your local network for active IPs. Features include: IPv4 Subnet Calculator with CIDR and Mask support Real-time IP and CIDR input validation Convert between CIDR and Subnet Masks Visual subnet breakdown (Premium) IPv6 support and Ping Scanner (Premium) Export results to PDF/CSV (Premium) iCloud sync for calculation history (Premium) Terms of Use: https://sites.google.com/view/paid-application-terms-of-use/%ED%99%88 Privacy Policy : https://sites.google.com/view/app0private/%ED%99%88 Contact Email : hesung0805@gmail.com

RECON is a professional network scanner for iPhone with 24 tools — from LAN scan and traceroute to HTTP client, Shodan queries, and CVE intelligence. One-time purchase. No subscription, no ads, no telemetry. —— TOOLS —— CONNECTIVITY • Ping — ICMP with live RTT oscilloscope and loss tracking • Traceroute — hop-by-hop path discovery with reverse DNS and geographic arc map • MTR — continuous path-quality monitoring combining ping and traceroute DNS & DISCOVERY • DNS Lookup — query A, AAAA, MX, NS, TXT, CAA records against any resolver • Reverse DNS — instant IP-to-hostname PTR resolution • LAN Scan — discover every device on your subnet via ARP and mDNS • Ping Sweep — scan entire CIDR ranges for live hosts • Bonjour Browser — browse all mDNS service types on the local network SECURITY & INSPECTION • Port Scan — TCP scan 1–65535 with banner grabbing and service identification • TLS Inspect — full certificate chain analysis, cipher suite, TLS version • HTTP Headers — request/response header inspection with timing breakdown • CVE Lookup — search the National Vulnerability Database by keyword INTELLIGENCE • WHOIS / RDAP — domain and IP registry data with parsed contact fields • ASN / BGP — autonomous system lookup via Team Cymru DNS • Shodan — search internet-connected devices for open ports and vulnerabilities • Network Topology — force-directed graph of discovered LAN nodes with risk assessment • Subdomain Enum — brute-force subdomain discovery with DNS validation UTILITIES • HTTP Client — API tester with custom methods, headers, and body (like Postman) • WiFi Info — current connection details, signal strength, channel • IP Calculator — subnet math, CIDR notation, host ranges • Speed Test — iperf3 throughput measurement • Wake-on-LAN — send magic packets to wake sleeping devices • Cert Monitor — track TLS certificate expiry across your domains • SNMP — query SNMP agents for device info and metrics —— WHAT MAKES RECON DIFFERENT —— GEOGRAPHIC TRACEROUTE Trace any route and watch it draw across a world map. Each hop is geolocated and plotted with animated arcs. NETWORK TOPOLOGY After a LAN scan, RECON builds an interactive force-directed graph of your network. Tap any node to inspect it, then jump directly into a port scan. GUIDED CHECKS Five checks answer a question instead of handing you a tool: is my internet slow, am I exposed, what is new on my network, are there cameras here, is my traffic being tampered with. Each one reports what it could not check, never a bare "nothing found". THE WATCH Declare the products and devices you run. RECON checks them against NVD and CISA KEV in the background and tells you when something you own comes under active exploitation. CROSS-TOOL NAVIGATION Tools talk to each other. Discover a host → scan its ports → inspect TLS → look up WHOIS. One continuous workflow. —— BUILT FOR PROFESSIONALS —— • Network engineers diagnosing connectivity and routing • Security teams running reconnaissance and incident response • Sysadmins managing infrastructure from the field • Military and government NetOps requiring mobile capability —— DETAILS —— • One-time purchase — no subscription, no in-app purchases • No ads, no tracking, no telemetry • Works offline for local network tools • Requires iOS 17.0 or later • iPhone only