404 Network vs NetScope

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/

"The internet is bad today" is almost never about your internet. It is usually one of four things, and NetScope tells you which one. ONE SCORE, WITH REASONS Tap once and NetScope runs the full check, then gives you a number out of 100 and a plain-English list of what it found. Not graphs you have to interpret — sentences like "the delay keeps changing, which is what makes calls break up". IT SEPARATES YOUR WI-FI FROM YOUR LINE NetScope times your router separately from the internet beyond it. If the router answers slowly, the weak part is the Wi-Fi hop in your own home — moving closer or changing channel will help. If the router is fast and the internet is slow, the problem is upstream and no amount of rearranging furniture will fix it. WHAT IT MEASURES • Latency, sampled repeatedly, plus the jitter between samples — jitter is what actually breaks up a call • Packet loss • Your router's own response time • DNS lookup times, the most common fixable cause of a fast line that feels slow • Download and upload throughput SEE WHAT ELSE IS ON YOUR NETWORK NetScope knocks on every address in your subnet and listens for anything announcing itself over Bonjour, then names what it finds: routers, printers, speakers, TVs, computers, other phones. INDIVIDUAL TOOLS Latency, DNS and speed are all runnable on their own, against any host you type in. PRIVACY Latency, DNS and device scanning all run from your iPhone and nothing is stored or transmitted. The one exception is the speed test, which uses Cloudflare's public speed endpoint — and only when you ask for it. NetScope only ever scans the network your iPhone is already on. Free, supported by ads. --- Subscription Information: • Payment will be charged to your Apple ID Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • Subscriptions may be managed and canceled by going to your App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mobilapps.app/privacy