NetDiag+ Network Toolkit

NetDiag+ — 25 network tools in your pocket: ping, traceroute/MTR, DNS, WHOIS, LAN & port scanner, SSL, speed test and more. No root, no jailbreak.

Your Zoom call is freezing. Your WireGuard VPN won't connect. Your smart TV keeps buffering. Someone might be leeching your Wi-Fi. You need answers — fast.

NetDiag+ puts 25+ professional network diagnostic tools in your pocket.

▸ DIAGNOSE NETWORK PROBLEMS • Ping & Traceroute — classic reach tests • MTR (My TraceRoute) — continuous traceroute with per-hop loss and latency, live updates • Path MTU Discovery — find the largest packet your VPN or tunnel allows • Speed Test — measure download / upload bandwidth • Site Reach — TCP + TLS audit of 35 popular sites, detects SNI blocks • HTTP/3 Tester — verify QUIC reach via a real handshake • Host Monitor — alerts when servers go down

▸ DNS, DOMAINS & SECURITY • NSLookup — query any DNS record type • Encrypted DNS — test DoH and DoT across Cloudflare, Google, Quad9, NextDNS • Whois — domain registration with parsed fields • SSL Checker — certificate inspector • TLS Inspector — which TLS versions and ciphers does a server support? • BGP Info — AS, peers, announced prefixes for any IP

▸ LOCAL NETWORK • Wi-Fi Info — current SSID, signal strength, IP details • LAN Scanner — discover devices on your local network • Bonjour Browser — find AirPlay receivers, printers, Chromecasts, HomeKit accessories • Port Scanner — check open ports on a host • STUN / NAT — public IP and NAT classification for VoIP, gaming, peer-to-peer • IPv6 Check — connectivity, NAT64 / DNS64, v4 vs v6 latency

▸ UTILITIES • Subnet Calculator — IP ranges, masks, broadcasts • IP Geolocation — locate any IP on a map • Network Passport — shareable network report card • History — every diagnostic you've run, exportable

In-app help on every new tool — tap (i) to read what it does, how to interpret results, and when to use it.

12 LANGUAGES: English, Russian, Ukrainian, German, Spanish, Portuguese (BR), French, Italian, Polish, Japanese, Korean, Turkish.

Made for network engineers, sysadmins, smart-home tinkerers, security researchers, and anyone who's ever yelled at their router.

No tracking. No account. No subscription. One-time IAP to remove ads — that's it.