Signal Detector

Name: Signal Detector
Rating: 3.75 (8572 reviews)
Author: Lefan Co., Ltd.

LiveLefan Co., Ltd.9 apps · 2.3M installsToolsFree · contains adscom.lefan.signal

Analyze Wi-Fi, 5G/4G, Bluetooth, GPS signals, and network quality

Alert me ★ Watch Open in Play ↗

Total installs: 2,277,419
Installs / day: +451
Rating: 3.8★
Released: 8 Jan 2023
Last update: 20 Sept 2026
Countries: —

Installs per day

gain of the exact counter

11 Oct 2026+451 installsOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 10 Oct 2026 · history grows every day

Install history

exact counter from Google Play

1dAll

Dashed: estimate from the release date (no daily data before 10 Oct 2026) · time axis compressed before that day

Daily tracking since 10 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
Collects data App info and performance
Data is not encrypted
No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

13 in 6 groups

3 Sensitive7 Notable3 Routine

What this app can do with your phone

Know roughly where you are, using mobile towers and Wi-Fi networks
Know your exact location using GPS, Wi-Fi and mobile networks
Record sound using your phone's microphone

LocationSensitive2

Access to where your device is, using GPS or network signals

Know roughly where you are, using mobile towers and Wi-Fi networksapproximate location (network-based) · ACCESS_COARSE_LOCATION
Know your exact location using GPS, Wi-Fi and mobile networksprecise location (GPS and network-based) · ACCESS_FINE_LOCATION

MicrophoneSensitive1

Access to your phone's microphone to record sound

Record sound using your phone's microphonerecord audio · RECORD_AUDIO

PhoneNotable1

Access to phone calls, call history, and voicemail

See your phone number, device IDs, whether a call is active, and the other caller's numberread phone status and identity · READ_PHONE_STATE

Device ID & call informationNotable1

Access to your phone's identifiers, mobile network details, and call status

See your phone number, device IDs, whether a call is active, and the other caller's numberread phone status and identity · READ_PHONE_STATE

Wi-Fi connection informationRoutine1

Access to details about Wi-Fi networks your device sees or uses

See whether Wi-Fi is on and details of the network you are connected toview Wi-Fi connections · ACCESS_WIFI_STATE

OtherNotable7

Access to miscellaneous device features that don't fit other categories

See Bluetooth settings and connect to paired devices like headphones, speakers or watchespair with Bluetooth devices · BLUETOOTH
Turn Bluetooth on or off and find and pair with nearby Bluetooth devicesaccess Bluetooth settings · BLUETOOTH_ADMIN
Change how your phone connects to networks, like switching connections on or offchange network connectivity · CHANGE_NETWORK_STATE
Connect to or disconnect from Wi-Fi networks and change saved Wi-Fi settingsconnect and disconnect from Wi-Fi · CHANGE_WIFI_STATE
Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET

Read more · all 13 permissions Show less

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Download

Full description

Monitor cellular (5G/4G), WiFi, Bluetooth, GPS, and magnetic field signals. Help locate quality signal sources and diagnose network issues. Phone | Cell Tower | WiFi | Bluetooth | Satellite | Magnetic | Speed | Noise 【Core Features】 1. Mobile Network Monitoring Supports GSM/CDMA/WCDMA/LTE/5G NR standards with real-time signal strength, base station info, carriers, and roaming status. • Dynamic trend charts for signal changes • IP, gateway, and DNS overview • Neighboring cell distribution mapping 2. WiFi Signal Analysis Monitor signal strength, frequency bands, and bandwidth. Display MAC, channel, and speed. Scan LAN devices and detect DNS hijacking, ARP spoofing, and SSL anomalies. • Assisted ranging • Webpage tampering detection • Freeloader detection and hidden device discovery • Visual route tracing 3. GPS Location Tracking Supports BeiDou, GPS, GLONASS, Galileo, QZSS, and IRNSS. Display satellite count, SNR, coordinates, altitude, and speed. • Polar coordinate visualization • 3D confidence assessment 4. Bluetooth Device Management Scan and classify nearby devices (headphones, wearables, car devices). Measure distance and location to help find lost devices. Supports paired list and nearby discovery. 5. Sensor Monitoring Collect magnetic, temperature, humidity, pressure, and light data. Use as compass, thermometer, barometer, and more. • Digital compass • Magnetic field threshold alerts • Multiple sensor access 6. Environmental Noise Detection Measure decibel levels in real-time with dynamic curve recording and historical data review. 7. Network Diagnostics IPv4/IPv6 PING tests measure latency, jitter, and packet loss. • Success rate + latency rating • Custom DNS and website testing • Detailed log recording 8. Speed & Device Status Display movement speed (km/h, mph, knots), direction, and satellite count. View CPU frequency, architecture, temperature, battery level, health, and charging status. • Real-time speed display for navigation reference • Battery health analysis 【Use Cases】 • Find strong signal spots and reduce dead zones • Detect network risks and identify ARP/DNS anomalies • Assist navigation and manage Bluetooth devices • Locate lost Bluetooth earbuds, wearables, and nearby devices • Monitor noise levels in living/working environments • Troubleshoot connectivity issues quickly Transform complex network technologies into intuitive visual information!

What's new

1. Improved noise calculation and added audio frequency; 2. Added bandwidth and other parameters to Wi-Fi information; 3. Added base station distance display, requires base station support; 4. Fixed some known issues.

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