Network Doctor vs Network Tools

Network Doctor is a clean Wi-Fi and network diagnostics toolbox for iPhone. ▶ Check current network status, local IP, public IP and TCP latency ▶ Scan reachable devices on your local network ▶ Run approximate speed tests for download, upload, latency and jitter ▶ Use DNS lookup, DNS speed test, port scan and Whois / IP info tools ▶ Discover local Bonjour services such as web, printer and media services ▶ Save diagnostic history locally ▶ Export reports as PDF, CSV or text ▶ No account required and no cloud upload Use it to understand your current connection, find reachable devices on your local network, test internet speed, check TCP latency, resolve DNS records, scan common ports, look up IP/domain information, browse Bonjour services, and export local diagnostic reports. Whether your Wi-Fi feels slow, a device is hard to find, DNS is acting strange, or you simply want a quick network check, Network Doctor gives you the essential tools in one simple app. Key Features ◉ Network Health Dashboard View your current connection, internal IP, public IP, DNS status, latency, and latest speed test result. ◉ LAN Scanner Find reachable devices on your local network using TCP connection probes. See detected services such as web, file sharing, and other reachable TCP ports. ◉ Speed Test Measure approximate download speed, upload speed, latency, and jitter using real network data. ◉ TCP Ping / Latency Check connection timing to a host and port. Designed for iOS using TCP connection timing instead of ICMP ping. ◉ DNS Lookup Resolve A, AAAA, MX, TXT, and NS records for domains. ◉ DNS Speed Test Compare DNS-over-HTTPS response timing and see which resolver responds faster. ◉ Port Scan Check common, web, mail, or custom TCP ports for a specific host. ◉ Whois / IP Info Look up domain and IP information for quick network reference. ◉ Bonjour Browser Discover local Bonjour services such as web, printer, media, and file sharing services. ◉ History & Reports Save diagnostic records and export reports as PDF, CSV, or text through the iOS share sheet. ◉ Privacy Friendly Network Doctor does not require an account. Reports are generated locally. LAN scan and Bonjour browsing only start when you choose to run them. The app does not collect MAC addresses or vendor tracking information. Network tests may use network data, and speed tests send random test data only for measurement. Results are approximate and can vary based on your Wi-Fi, router, ISP, endpoint availability, and current network conditions.

A network engineer's toolkit that runs entirely on your iPhone. Seventeen tools, no account, no server of ours, and nothing about you collected. THE TOOLS • Ping — ICMP latency and packet loss, with a live chart • Traceroute — the hop-by-hop path, each router named • LAN scan — every device on your subnet, named and identified: routers, NAS boxes, printers, Macs, phones • Port scan — TCP connect scan with banners and service names, from a handful of ports to all 65535 • DNS — your own wire-format resolver: every record type at once, any public resolver you choose, DNS-over-HTTPS, reverse lookups, and a comparison mode that queries five resolvers and flags the one that disagrees • HTTP check — status, redirect chain, the DNS/connect/TLS/TTFB split, security headers • TLS — the full certificate chain, expiry, SANs, cipher suite, and whether the system trusts it • WHOIS — the referral chain followed to the registrar that actually holds the record • Wi-Fi — link quality graded against local thresholds, and a walking survey that compares rooms • Speed test — download, upload, latency and jitter, against Cloudflare or a URL you name • iperf3 — throughput against your own iperf3 server, up or down, multi-stream • IP calculator — CIDR maths, masks, host ranges, binary, and subnet division including VLSM • MAC lookup — 39,000 vendor prefixes, bundled and fully offline • Wake on LAN — the magic packet, sent to every address that might reach a sleeping machine • Network interfaces — addresses, subnets, flags and live throughput • Telnet — a raw TCP terminal for switches, PDUs and console servers • SSH — see below A REAL SSH CLIENT Not a wrapper. The protocol is implemented in Swift, and it does the things you actually need from a phone: • Jump hosts — reach a machine behind one bastion or several, each hop with its own account, its own credential and its own host key to confirm • Port forwarding — bind a local port to a service on the far side, then open it in a browser inside the app: a router's web interface, a database, a dashboard listening only on the server's loopback • scp — send a file up or pull one down, straight to the Files app • ssh-copy-id — put your public key in a server's authorized_keys without a second terminal • Keys — generate ed25519 on the device, or import ed25519, ECDSA and RSA in OpenSSH or PEM form, protected or not. Private keys live in the Keychain and can be exported under a passphrase when you need them elsewhere • Snippets — the commands you always type, one tap above the keyboard • A proper terminal — a real VT/xterm emulator, so vim and htop work, with esc, ctrl, alt, arrows and F-keys on a row of their own