Signal Detector

Contains ads
8,65K reviews
Content rating
PEGI 3
1M+
Downloads
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About this app

Analyze various signals in real time: cellular network, Wi-Fi, Bluetooth, satellites, and magnetic field; monitor state data like noise, speed, and battery, presented clearly and visually through dynamic charts.

【Main Features】

1. Cellular Signal Analysis
Supports GSM, CDMA, WCDMA, LTE, and 5G NR. Displays signal strength, base station information, carrier, network type, and roaming status.
· Dynamic trend curve to view signal changes
· IP, gateway, and DNS summary for quick review
· Distance estimation to the base station
· Neighbor cell list for coverage assessment

2. Wi-Fi Signal Analysis
Scans available Wi-Fi networks and detects signal strength, band (2.4 GHz / 5 GHz), channel, bandwidth, speed, and MAC.
· Distance and direction estimation to locate devices
· Scan devices on the local network
· Detect DNS hijacking, ARP spoofing, and SSL anomalies

3. GPS Positioning and Tracking
Receives BeiDou, GPS, GLONASS, Galileo, QZSS, and IRNSS signals. Shows satellite count, signal-to-noise ratio, coordinates, altitude, and speed.
· Polar sky chart with satellite positions
· 3D accuracy reliability assessment
· Real-time speed and direction

4. Bluetooth Device Management
Scans headphones, smartwatches, car devices, and IoT devices, automatically classified by type.
· Bluetooth distance estimation to find lost devices
· List of paired and nearby devices
· Real-time device info (name, MAC, signal strength)

5. Environmental Sensor Monitoring
Integrates sensor data: magnetic field, temperature, humidity, pressure, light, accelerometer, and gyroscope.
· Digital compass (based on magnetic field sensor)
· Magnetic field strength monitoring with threshold alerts
· Temperature and humidity comfort assessment

6. Environmental Noise Detection
Measures noise level in decibels in real time.
· Dynamic decibel curve for noise level
· Noise distribution history review
· Noise level classification alerts

7. Network Diagnostic Tool Set
· Network check: airplane mode, SIM, Wi-Fi/cellular data, network quality, PING packet loss, DNS speed, HTTP/HTTPS connections, and jitter; with automatic score and recommendations
· PING test: evaluate IPv4/IPv6 latency, jitter, loss, and success
· Custom DNS test for any server
· Traceroute: show IP, latency, and node names step by step
· Single-site speed test with URL
· Cyclic speed test for multiple sites

8. Battery and Hardware Monitoring
◆ Battery
· Monitor current, power, and voltage with trend charts
· Smart estimation of remaining charge/discharge time
· Battery analysis: cycles, capacity, and temperature
· Automatic charging source detection
· Background monitoring and foreground notifications

◆ Hardware
· CPU architecture and model
· Frequency and core temperature monitoring
· Abnormal frequency reduction (throttling) alerts

【Use Cases】
· Find stronger signal in elevators and basements to reduce dead zones
· Detect DNS hijacking and ARP spoofing on public Wi-Fi for security
· Analyze location and manage Bluetooth devices
· Find lost Bluetooth headphones and smartwatches
· Control noise levels to improve environment
· Solve network issues quickly and save time

We turn complex data into clear, dynamic charts — let's explore the visible digital world together!
Analyze cellular, Wi-Fi, GPS, Bluetooth, noise, sensors & hardware.
Updated on
29 Oct 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App info and performance
  • Data isn’t encrypted
  • Data can’t be deleted

Ratings and reviews

8,48K reviews
Peace Alliance
21 July 2026
Besides the people that believe that if you download an app, there's not an agreement attached to it because obviously they don't read the private policy and the user and license agreement. And they cry because they don't know how to read, or are just too lazy. So I work in education, and I took it to the test, even next to a set of magnets that we use for certain things. And it worked perfectly, strange how a phone can actually do more than what people imagine. It worked perfectly.
18 people found this review helpful
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Private
21 September 2026
I've used many Cell/WiFi signal information apps but this is definitely the best out all! It has all the core features you'd need and presents information in a clear and understandable way.
2 people found this review helpful
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Randy Connor
13 September 2026
there are some ads you deal w itg to get to the app it self. but once your in the main window its stable. no add poping out of the closet to jump ya. its a good app and I enjoy it
4 people found this review helpful
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What's new

1. Web speed test optimized: more accurate results and smoother loading
2. WiFi experience fixes: fixed channel calculation issues, added 2.4GHz/5GHz band display
3. Noise detection upgrade: supports home/office/outdoor multi-scenario evaluation
4. Battery monitoring new upgrade: real-time current/voltage/power viewing