404 Network vs HackCheck

404 Network brings network diagnostic tools to 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 • Structured PDF reports: measurements, observations, context and available-data limits • 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. • Supported history and saved records can sync through your private iCloud database when iCloud is available • Optional public speed sharing rounds coordinates to a coarse grid; permitted Wi-Fi survey records can retain precise coordinates privately • On-device AI is available on supported devices. Optional cloud AI sends the context you authorize to the selected provider using your API key • Review export, deletion and sharing controls in the app and the privacy policy TERMS OF USE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

"I think my iPhone might have been hacked." When that thought hits, it is hard to know what to look at. HACK CHECK walks through what your iPhone can actually tell you, one item at a time. ■ Honesty first This app will never tell you "you have been hacked," nor "you are safe." Neither can be determined from what iOS makes available to an app. Instead, it reports the current state of each item it was able to check - and it shows you, in plain sight, the list of things it cannot check at all. ■ Results stay on your device The items checked, the findings, and the values read are stored only on your iPhone. The developer cannot see them. You can delete your history at any time, or export it to a file. Whether that file goes anywhere is entirely your decision. ■ What is checked - Passcode and biometric settings - Signs that the device has been modified - Whether the connected Wi-Fi network is encrypted - Proxy and VPN configuration - Screen recording and mirroring status - Whether notification contents appear on the lock screen - Storage and memory headroom - Time since the last restart and more Choose from three levels of depth. The standard check takes about ten seconds; the most thorough takes about a minute. ■ What cannot be checked iOS strictly limits what one app can learn about other apps and about network traffic. That protects you - and it also means the following cannot be determined: - The list of installed apps - What data other apps actually collect - The contents of network traffic - Past sign-in history - The presence of malware - Call history - The contents of SMS and messages "Could not be checked" is not the same as "no problem found." The app keeps that distinction visible throughout. ■ Pricing Free, with no in-app purchases. Ads are shown, but they are non-personalized - your activity is not tracked. ■ Please note This app is not a substitute for a professional investigation. If you believe you have actually been targeted, please contact the police or a specialist.