404 Network vs MTRay

404 Network is the most comprehensive network diagnostics toolkit for iOS and macOS. Whether you're a network engineer troubleshooting connectivity or a security enthusiast auditing your home network, 404 gives you professional-grade tools in a beautiful native app. CORE TOOLS (FREE) • Real ICMP Ping with live latency charts • Visual Traceroute with hop-by-hop analysis • DNS Lookup with multiple server comparison • Speed Test with ISP detection • WiFi Info with signal strength monitoring • Port Scanner with service detection • Network Discovery with live topology map • Wake-on-LAN for remote device power • HTTP Probe for web server testing • Whois domain lookup PRO FEATURES • 70+ network diagnostic tools • Unlimited saved devices with background monitoring • Full port scan results with banner grabbing • 30-day diagnostic history with CSV/JSON/PDF export • Color tags, device groups, and topology presets • Community speed map — compare ISP performance in your area • Security Audit with vulnerability detection • WiFi Channel Analyzer • Smart Home device diagnostics • LAN Speed Test and Micro Speed Logger PRO+ ADVANCED • AI Assistant powered by Claude or on-device Apple Intelligence • AI-guided Security Audit and Penetration Test flows • Remote Sensor dispatch — run tools from multiple network vantage points • BLE Scanner Pro with GATT exploration and characteristic writing • NFC Toolkit — read, write, and clone-detect NFC tags • SSH Tester, SNMP Walker, Credential Checker • Subdomain Finder, CORS Checker, CSP Analyzer • Packet Crafter, Payload Library, Directory Scanner PRIVACY FIRST • No ads. No tracking. No analytics. • All network data stays on your device • Community features are opt-in with location rounded to ~500m • AI features require your own API key — we never see your data • Full GDPR compliance with data export and deletion TERMS OF USE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Troubleshoot connectivity, inspect certificates, look up domain registration data, and measure network performance with MTRay on iOS and macOS. Use individual tools for a quick check, or combine probes into reusable JavaScript reports with MTRay Pro. **INCLUDED FREE** • Ping, TCP Port Scan, and text-based Traceroute, with automatic IPv4/IPv6 selection for Ping and Traceroute • SSL/TLS Inspection: certificates, protocol, cipher, handshake timings, and certificate trust evaluated by your device • HTTP Simple and DNS Simple for everyday requests and lookups • Connection Timeline: DNS → TCP → TLS → Request → Transfer • WHOIS queries and RDAP domain registration lookups; available details depend on the registry • iPerf3 client: TCP/UDP upload and download tests, configurable UDP target rate, and optional username/password/RSA public-key authentication • iPerf3 results include throughput and, when available, retransmissions, RTT, UDP jitter/loss, CPU usage, and server output • Connection Quality: latency, packet loss, and jitter over repeated probes • Offline IP geolocation with a map, Wake-on-LAN, and subnet calculations • Network interfaces, routing tables, and ARP/NDP neighbors • TCP, UDP, and WebSocket communication **MTRay Pro — ONE-TIME PURCHASE** The following features require Pro: • MTR (My Traceroute): continuous route probing with per-hop loss and latency statistics • Script: run built-in examples, edit custom JavaScript workflows, and save named scripts for reuse • SSL Certificate Monitor: check certificate expiry across multiple hosts • HTTP Advanced: HTTP/2 and HTTP/3, proxy settings, ECH, custom resolvers, verbose diagnostics, and curl command import/export • DNS Advanced: custom servers and record types, including DoH, DoT, and DoQ • Bonjour Browser for local network services • Traceroute Route Map with geographic hops • Export and share results; iCloud bookmark sync Buy once to unlock Pro on both iOS and macOS. No subscription. **SCRIPT EXAMPLES — Pro REQUIRED TO RUN** Start with Network Diagnostics, Multi-Host Health Check, DNS + Traceroute, Port Scanner, HTTP API Test, TLS Inspection, Domain Registration, or IP Geolocation. The Network Diagnostics example checks DNS, Ping, TLS, HTTP, and Traceroute independently. Built-in APIs cover DNS, Ping, Traceroute, HTTP, TCP port scanning, SSL/TLS inspection with certificate trust, WHOIS, domain RDAP, and offline IP geolocation. Set timeouts, catch JavaScript errors, format JSON, and generate Markdown or plain-text reports. Adapt the examples to your own diagnostic workflow. **WHO IT’S FOR** Network engineers, developers, IT professionals, and anyone who wants to examine connectivity and network services directly. **PRIVACY & NETWORKING** No account required. No ads. Diagnostic probes contact their target hosts and services; WHOIS/RDAP queries contact registration services. IP geolocation uses a bundled offline database. Local network tools require appropriate access. See the privacy policy and App Store privacy labels for data-handling details.