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What's New
[ Version 2.7.2 ]
- Updated to the latest Android SDK
- Improved magnetic field detection engine
- Enhanced stability and performance
- UI/UX improvements for a better experience
- Bug fixes reported by users
- Dark/Light theme support refined
- 50+ languages supported
About this app
Magnetic Field Meter turns your smartphone into a professional EMF detector, metal detector, RF signal analyzer, stud finder, ghost hunter, and digital compass — all in one app. It uses your device\'s built-in magnetometer to deliver accurate, real-time measurements with no extra hardware.
■ How Does It Detect Metal?
Your phone\'s magnetometer measures the surrounding magnetic field in microtesla (μT). Ferrous metals — iron, steel, nickel, cobalt — distort the Earth\'s natural field (25–65 μT), and this app detects those distortions with vibration, sound, and color-coded visual feedback.
Note: Non-ferrous metals (gold, silver, copper, aluminum) do not affect magnetic fields and require professional electromagnetic induction equipment to detect.
■ Adaptive AI Detection Engine
Most EMF apps use a fixed threshold that causes false alarms. Magnetic Field Meter\'s Guarded EMA algorithm continuously learns your environment\'s magnetic baseline and adjusts automatically — accurate indoors, outdoors, and near electronics. The sensitivity slider (−30 to +30) lets you fine-tune from strict to highly sensitive.
■ Real-Time Measurement & Visualization
- Live readings in μT, mG (milligauss), and A/m
- Circular gauge with 13-level color gradient (green to red)
- Scrolling line chart tracking up to 1,000 data points
- Delta (Δ) display showing change from calibrated baseline
- Min / Max / Threshold statistics updated continuously
■ Detection Alerts
- Haptic vibration on magnetic anomaly detection
- Audible alarm that scales with field intensity
- Color-coded status indicator across the UI
- Status bar notification with 7 one-tap shortcuts
■ RF Signal Meter
Monitor Wi-Fi and cellular signal strength in real time. View connection details — SSID, RSSI, frequency, link speed for Wi-Fi; operator, signal dBm, network type for cellular. A dual-line live chart plots both signals. Scan nearby Wi-Fi networks with signal bars.
■ Stud Finder
Find metal studs, pipes, and rebar behind walls using the magnetometer. A 3-step on-screen guide walks you through: hold your phone flat, tap Start, and slide slowly. Color-coded sensitivity feedback shows detection strength in real time.
■ Ghost Hunter Mode
Fun paranormal EMF detector for parties with a matrix-style dark UI, 5-level activity bars, EVP log driven by real sensor data, and DTMF audio tones that intensify with EMF readings. For entertainment only.
■ EMF Recorder
Log magnetic field data with timestamps and GPS coordinates. Browse history and export as CSV for analysis.
■ Digital Compass
Aviation-style 360° heading display with N/S/E/W directions and smooth sensor-driven rotation.
■ Who Uses This App?
- Home inspectors — locate iron pipes, rebar, steel studs in walls
- DIY enthusiasts — find studs before drilling, detect buried metal
- Electricians & engineers — measure EMF near power lines
- Network technicians — diagnose Wi-Fi and cellular coverage
- Students & educators — hands-on magnetism experiments
- Ghost hunting fans — entertain friends with paranormal mode
■ What Can & Cannot Be Detected
✓ Iron, steel, nickel, cobalt, magnets, electromagnetic sources, Wi-Fi/cellular signals
✗ Gold, silver, copper, aluminum, brass, lead (non-magnetic)
Dark & Light theme, 50+ languages, screen capture, baseline calibration, lightweight with no background drain.
User Reviews
the values it shows make sense, but the UI is very cluttered and there doesn't seem to be a good way to export data. Just use phyfox instead
DO NOT DOWNLOAD THIS APP!!!!! I was trying to use it and a foreign language popped up. Immediately after that popped up another thing popped up asking for my location. I uninstalled this app so fast, faster than the flash could run. Hopefully no bug got to my phone before I deleted this app. But stay safe AND DONT INSTALL THIS SCAM APP.
awesome app been usonv olit gor the past 2 years wonderful app This how i been investigating into illegal field operations. and field experiments with long range accoustic devices the only thing i have a problem with is the only thing i have a problem with is someone hacking my account and stealing my data and my personal nude photos.. Also signal interfereance bing Transmitted to me illegally ive contacted Sever them and the secret service also the online fcc portal hub
It would be practical to save the position of the sensor on the display as in Lepsi . The sensor is at the top and the parameters are not visible. Center the content to the bottom. Do not put the ads at the top because they will be accessed. Thank you
How to Download Magnetic Field Meter APK
- Enter the package name
com.smartwho.smartmetaldetectoron the APK Downloader. - Select your device architecture (ARM64 recommended for modern devices).
- Click Download to get the merged APK file.
- Transfer and install the APK on your Android device.
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