NetSpectra: WiFi & LAN Scanner

Quantafy Software

In-app purchases

About this app

See the devices on your Wi-Fi, check what changed since your last scan, and find a less crowded channel. NetSpectra is a network scanner and Wi-Fi analyzer for Android that keeps your scan data on your phone. It works without an account or ads, and Pro is a one-time purchase.

NETWORK SCANNER FOR WI-FI & LAN
• Scans every IP address on your Wi-Fi subnet (/24, up to 254 hosts). On a 2019 Galaxy S10 a full sweep takes 8–9 seconds; your phone and network may differ.
• Uses ping (ICMP) plus TCP checks, so devices that ignore ping still show up
• Names devices with UPnP/SSDP, mDNS (Bonjour), NetBIOS and reverse DNS
• Recognizes routers, PCs, Macs, phones, TVs, printers and smart-home devices
• Give devices nicknames and mark the ones you trust, so an unknown device stands out

WHO'S ON MY WI-FI? SEE WHAT CHANGED
• Every scan is saved on your phone as a snapshot
• Compare two scans to see which devices are new, which went offline and which changed IP address
• The free version keeps your two newest snapshots, so comparing your latest scans costs nothing

WI-FI ANALYZER & CHANNELS
• See nearby networks on 2.4 GHz, 5 GHz and 6 GHz (6 GHz on supported phones), channel by channel
• Spot networks that overlap with yours
• Get a suggested channel for each band, with a note when it is a DFS channel
• See the manufacturer of nearby access points from a built-in IEEE vendor database

NETWORK TOOLS
• Port scanner with Web, Remote access, File sharing and Database presets
• Ping with a live latency graph, jitter and packet loss
• Traceroute, hop by hop
• DNS lookup that builds its own queries and shows each record with its TTL. Ask your network's resolver, Google (8.8.8.8) or Cloudflare (1.1.1.1).
• Wake-on-LAN

PRIVACY
• Scan results stay on your phone unless you export them
• The app contains no ad, analytics or tracking libraries, and you never create an account
• Scanning your local network does not need an internet connection. The DNS tool and traceroute contact the servers you pick, and purchases go through Google Play.

FREE AND PRO
Free:
• Full network scan with device names and nicknames
• Wi-Fi analyzer with channel suggestion
• Ping, traceroute and Wake-on-LAN
• Port scanner with all presets
• DNS lookup for A records
• Your two newest snapshots and their comparison

NetSpectra Pro, a one-time purchase:
• Unlimited scan history: compare any two past scans
• Export scans as JSON or CSV
• Custom port ranges, up to 1,024 ports per scan
• DNS lookup for AAAA, MX, TXT, CNAME and NS records
• Restore your purchase on any device signed in to the same Google account

GOOD TO KNOW
• Needs a Wi-Fi connection. NetSpectra scans the network you are on (IPv4, up to a /24).
• Android ties Wi-Fi names and nearby-network lists to the location permission. NetSpectra does not store or send your location, and the device scan works without it.
• Guest networks and routers with "AP isolation" hide devices from each other. On those networks only the router shows up.
• Only scan networks you own or have permission to test.

Questions or bug reports: [e-mail]

What’s new

Initial release of NetSpectra. Includes Wi-Fi scanning, subnet discovery, and diagnostic tools.