CellSight: 5G LTE WiFi Signal

CellSight shows exactly what your phone is connected to and how strong the signal is: on every SIM, on 5G, LTE, 3G and 2G, and on WiFi. Made for network engineers, router tweakers and anyone hunting for better reception. No account and no sign-up. Your signal readings and history never leave your phone. SIGNAL STRENGTH METER (5G / LTE / 3G / 2G) • Live dBm gauge with RSRP, RSRQ, SINR and CQI, colour coded from excellent to very poor • Dual SIM: both lines side by side, with carrier, band and default data SIM • Band, EARFCN / NR-ARFCN, PCI, frequency and bandwidth for the serving cell • 5G NSA (EN-DC) and carrier aggregation status • Neighbour cells, strongest first • Spectrum chart of every carrier your phone can hear WIFI ANALYZER • Channel graph for 2.4, 5 and 6 GHz with a distance estimate per network • Timeline of signal strength • Best channel recommendation • Network list with vendor, security and link speed TOOLS • Signal finder: walk around and follow the beeps to the strongest spot, like a metal detector • Internet speed test (ping, download, upload) on free servers: nearest Cloudflare edge, or London, Frankfurt, Amsterdam, New York, Atlanta and Los Angeles • Channel lookup: EARFCN, NR-ARFCN, UARFCN and ARFCN to frequency and band • Band lock advisor for 4G/5G routers HISTORY & EXPORT • Background logging of SIM 1, SIM 2 and WiFi, you choose which • Scrollable signal charts with every band and cell change marked • Export to CSV or JSON HOME SCREEN WIDGETS Dual SIM (4×1), cell signal (2×1) and WiFi (2×1) widgets, plus a live readout in the notification bar. Available in English, Sinhala, Hindi, Chinese, Spanish, Arabic, French, Portuguese, Russian and Japanese. Free with a small banner ad. Remove ads with a one-time purchase; every feature stays free either way.