Best apps for network troubleshooting

Acutis · plain-English network help · updated June 2026

When your Wi-Fi or internet is misbehaving, the right app turns a vague "it's slow" into a specific, fixable problem. Below is a curated list of genuinely useful, well-known tools — grouped by platform — with a one-line note on what each is best for. Most have a free version that covers everyday troubleshooting; the paid tiers mainly add reporting and pro features. And if you would rather not install anything at all, jump to the no-install browser tools at the end.

Android

WiFiman (Ubiquiti)

Best for a clean all-in-one view of nearby networks, signal strength, channels, and a built-in speed test. Free.

WiFi Analyzer

Best for spotting channel overlap — its classic graph makes it obvious which 2.4GHz channel (1, 6, or 11) is least crowded.

Network Analyzer

Best for the everyday toolkit: ping, traceroute, DNS lookup, port scan, and a LAN device list in one app.

Fing

Best for seeing every device connected to your network, with vendor names and intrusion alerts. Free core, paid upgrades.

PingTools

Best for focused connectivity checks — ping, traceroute, port scanning, and Wake-on-LAN in a tidy package.

Speedtest by Ookla

Best for a quick, trusted download/upload/ping number you can compare against your internet plan.

iOS

WiFiman

Best for the same clean network overview and speed test on iPhone and iPad. Free.

Network Analyzer (Techet)

Best for a polished iOS toolkit: Wi-Fi info, ping, traceroute, DNS lookup, port scan, and reachability tests.

Fing

Best for scanning who and what is on your network, with device identification and alerts. Free core, paid upgrades.

Speedtest by Ookla

Best for a fast, reliable speed reading to confirm you are getting the bandwidth you pay for.

iNetTools

Best for a grab-bag of classic diagnostics — ping, DNS lookup, port scan, traceroute, and whois — in one free app.

Desktop

NetSpot / Acrylic Wi-Fi (Wi-Fi surveys)

Best for proper site surveys and heat maps on Mac and Windows — walk your space and see coverage room by room. Free tiers available; pro features are paid.

Angry IP Scanner / Advanced IP Scanner (device discovery)

Best for quickly listing every device, IP, and open port on your LAN. Both are free; Angry IP runs cross-platform, Advanced IP Scanner is Windows-only.

Wireshark (packet capture, advanced)

Best for deep, packet-level analysis when you need to see exactly what is on the wire. Free and powerful, but built for advanced users — overkill for simple "is my Wi-Fi slow" questions.

Which one should you reach for?

Match the tool to the symptom. If a room is slow or drops out, start with a Wi-Fi analyzer (WiFiman, WiFi Analyzer, NetSpot) to check signal and channels. If something feels off with your whole connection, a speed test and a ping test tell you whether it's bandwidth or latency. If you suspect an unknown or hogging device, a scanner like Fing or Angry IP Scanner lists everything on the network. And if you need to prove exactly what's happening on the wire, Wireshark is the deep-dive option. For most homes, a free browser test or a free phone app answers the question in under a minute.