CellRadar
Live 4G/5G and Wi-Fi signal in plain words, a speed test, a Wi-Fi analyzer, the devices on your network and a step-by-step Network Doctor that explains why the internet feels slow.
Real readings
Signal in dBm, band and cell ID straight from your phone.
14 languages
Including Arabic, Hindi, Japanese, Korean and Portuguese.
No account
Readings, scans and saved places stay on your phone.
No app can boost your signal or speed up your network. CellRadar measures what your phone receives, explains it and points you to the fix — a better channel, a better spot, or a call to your provider.
All 21 features
Signal 4
- Live mobile signalStrength in dBm with network type (4G, 5G), carrier, band and cell ID.
- Signal mapYour own readings on a map, with offline maps and place search.
- History and reportsSignal history with PDF and CSV reports.
- Widget and live monitorA home-screen widget and an optional live readout in the notification bar.
Wi-Fi 5
- Wi-Fi AnalyzerNearby networks, a channel graph, Wi-Fi 6/6E/7 and a suggested channel.
- Wi-Fi MeterA live strength gauge to find the best spot in your home.
- Dead-zone Walk MapWalk a room and colour each spot by its measured signal.
- Wi-Fi QR codesScan to join, or create one to share your network.
- Password vaultEncrypted storage for your Wi-Fi passwords.
Your network 4
- Device ScannerThe devices on your Wi-Fi with names and makers.
- Network MapYour devices drawn around the router.
- Network GuardAn alert when a new device joins.
- Privacy SweepDevices on your Wi-Fi and Bluetooth devices nearby, in one tap.
Answers, not just numbers 4
- Network DoctorStep-by-step checks and a plain-language verdict on why it is slow.
- Game & Call CheckIs this connection ready for video calls, gaming and 4K?
- Network Health ReportA score out of 100 with performance and security findings.
- Ask CellRadarType a question and it runs the right test.
Speed and tools 4
- Speed testDownload, upload, ping and jitter.
- Satellite & Sky ViewThe satellites your phone receives and how open your sky is.
- Network toolsPing, DNS lookup, traceroute, port check, Whois, IP location, MAC lookup, IP calculator and Wake-on-LAN.
- Discovery and terminalBonjour/UPnP/NetBIOS discovery, SNMP and an SSH/Telnet terminal.
Free on Android. Questions? Contact support.