NetSpectra - Network Analyzer

NetSpectra shows what your phone's radios see and tells you what to do about it. Free, no account, and everything it measures stays on your phone. WI-FI • Channel graph and waterfall for 2.4, 5 and 6 GHz, with the quietest channel for your router • Your connection in detail: signal, link speed, standard (Wi-Fi 4–7), channel width, security • Live radar of nearby networks and an overall health score SPEED & QUALITY • Download, upload and bufferbloat (lag under load) on the open Measurement Lab platform • What your line is good for: HD calls, 4K streaming, gaming, big uploads • Ping, DNS benchmark, traceroute with a world map, port scanner for your own devices • A Live Update shows the running test in the status bar MOBILE NETWORK • Serving and neighbor cells for 2G to 5G: bands, channels, carrier aggregation • Signal history and a handover timeline, frequency calculator • Walk-test map: color your route by signal and estimate where the towers are SECURITY • Wi-Fi security audit: weak encryption explained, with how to fix it • Look-alike (evil twin) networks that copy a name you trust • Bluetooth trackers (AirTag, SmartTag, Tile, Chipolo) that travel with you • New devices on your home network INSIGHTS • One health score with what to fix, step by step • Optional background checks: trends, your best and weakest places, a weekly report • Home-screen widgets and Quick Settings tiles ALSO • LAN scanner with device names and open services, Ethernet details, Wi-Fi QR codes • Bluetooth scanner with a hot/cold finder for lost devices • GNSS sky plot: every satellite and constellation, dual-frequency check • Share any result, export everything to CSV, GPX or GeoJSON, and back it up • Material You design, dark mode, Neon and High-contrast themes PRIVACY Measurements, scans and locations are stored encrypted on your phone and never uploaded. The app is free with ads from Google AdMob; ads pause while a measurement runs. Speed tests run on Measurement Lab, which publishes results as open data.