WiFi Tracer · for iPhone
WiFi Tracer puts 26 network tools on your iPhone. Check your Wi‑Fi link quality, find every device on your network, audit its security and test any host. Every measurement runs on your device.
Measure
Speed, loaded latency, jitter, MTU, bufferbloat and call quality.
Local
Your Wi‑Fi link quality and every device on your LAN.
Inspect
TLS, DNS, headers, WHOIS and ports for any host.
Diagnose
Six checks, one plain‑English verdict, and a security audit.
Why is it slow?
One tap checks every hop from your phone to the internet at once. If your router is the weak link, it won’t blame your provider: you get the one link that failed and what to try next.
Wi‑Fi link · round‑trip time, jitter and loss to the router
Gateway · is the router responding, and how fast
DNS · lookup time and failures on your resolver
Internet · packet loss and latency to the edge
Bufferbloat · how much latency grows under load
IPv6 · whether your ISP gives you a working IPv6 path
Speed test
Download and upload from Cloudflare and regional servers, plus the idle and loaded latency you feel on calls and games. Every result says what your line can handle, from 4K streaming to cloud backup, and lands in your history.
Local network
LAN scan sweeps your subnet with TCP, ICMP and mDNS, draws a map of what answered and flags devices you haven’t seen before. Bonjour shows what each one offers, from AirPlay speakers to screen mirroring.
Security
The security audit grades your network from A to F: router admin over HTTPS, risky open services, UPnP port maps, DNS honesty, encrypted DNS and HTTP interception. On hotel or Airbnb Wi‑Fi, Hidden cameras asks every device whether it streams video.
Host inspector
Type a domain or IP and get one graded report: reachability, ping stability, DNS records (A, AAAA, MX, NS, TXT, CAA), the TLS certificate, HTTP security headers, email authentication (SPF, DKIM, DMARC), common open ports, WHOIS expiry and blocklist status.
Calls & games
Ten pings a second for up to a minute, scored as a call‑quality MOS out of 4.5. Latency, jitter, loss and spikes are drawn against the gaming limit, and six activities get their own headroom: voice and video calls, competitive, cloud and casual gaming, and streaming.
27 tools
Free always free. Every other tool runs once free, then with Pro.
How fast, how stable
What’s on your Wi‑Fi
Any host, any domain
Find the bottleneck
Is it safe to use
Honest by design
iOS restricts what App Store apps can read about Wi‑Fi. WiFi Tracer works within those limits and tells you when something isn’t available, instead of showing made‑up numbers.
| Data | Available on iPhone? | What WiFi Tracer does |
|---|---|---|
| Wi‑Fi signal strength (RSSI, dBm) | No | Scores link quality from round‑trip time, jitter and loss to the router, sampled every second |
| Wi‑Fi channel and congestion | No | Explains the limit and links to your router’s admin page |
| Nearby networks | No | Not shown |
| Device MAC addresses | No | Identifies devices from open ports, Bonjour names and reverse DNS |
| Network name (SSID) and BSSID | Yes, with Precise Location | Shown on the Wi‑Fi screen. Location itself is never stored |
| Devices and services on your LAN | Yes, with Local Network access | LAN scan, Bonjour, UPnP, security audit, hidden cameras |
| Latency, jitter, packet loss, throughput | Yes | Speed test, ping, traceroute, bufferbloat, call readiness |
Privacy
Ad‑free on every plan. The result is the whole screen.
Stays on your iPhone. Scans, history and device names never leave it. The app has no analytics, account or server of its own. Read the privacy policy →
Free to start. Speed test, ping, DNS lookup, subnet calculator, Wi‑Fi QR share and captive portal check are always free. Every other tool gets one free run. Pro unlocks everything for $14.99 once or $1.99 a month.
FAQ
WiFi Tracer is an iPhone app that bundles 26 network tools, including a speed test, ping, traceroute, LAN scan, host inspector and security audit. It runs every measurement on the device and needs no account. It has no ads or tracking. It is available in English, 简体中文, Español, Português and Français.
A slow connection usually comes from one of six places: a weak Wi‑Fi link, an overloaded router, slow DNS, packet loss at your internet provider, bufferbloat (latency that spikes under load), or the website itself. WiFi Tracer’s “Why is it slow?” tool tests each hop in order and tells you which one is failing.
No. iOS does not let App Store apps read Wi‑Fi signal strength (RSSI), channels, nearby networks or device MAC addresses. Apps that claim to show these on iPhone are estimating. WiFi Tracer instead scores link quality from round‑trip time, jitter and packet loss to your router, measured every second. See the full table.
Join the rental’s Wi‑Fi, then run the Hidden cameras tool. It scans the subnet for devices with camera ports (RTSP 554, 8554 and common vendor ports), asks ONVIF cameras to identify themselves, reads UPnP descriptions and flags device names from camera brands. It can only see cameras on the same network as your phone, so a camera on a separate network or recording to an SD card won’t appear.
It’s free to download. Speed test, ping, DNS lookup, subnet calculator, Wi‑Fi QR share and captive portal check are always free, and every other tool gets one free run. WiFi Tracer Pro unlocks all 26 tools, monitors, new‑device alerts and CSV export for a one‑time $14.99 or $1.99 a month (US prices). There are no ads on either plan.
No. Scans, history and device names stay on your iPhone. The app has no analytics, no account and no server of its own. Some tools contact public services to do their job, such as Cloudflare for the speed test or ipify for your public IP. The privacy policy lists every one.
iOS only shares the Wi‑Fi network name (SSID) with apps that have Precise Location, so WiFi Tracer asks for it to show which network you are on. It never stores or sends your location. Local Network access lets the LAN scan, Bonjour, UPnP, security audit and hidden camera tools find devices on your network. Both are optional: every other tool works without them.
Bufferbloat is extra latency caused by oversized buffers in your router or modem when the line is busy. Your speed test may look fine while video calls and games stutter during uploads or downloads. WiFi Tracer measures latency before and during load and grades the difference from A to F.
WiFi Tracer