Magnetic Field Meter

2.7.5

SMARTWHO

4.00

547 reviews

100,000+
Downloads

Free

Magnetic Field meter, EMF/RF, stud finder, ghost hunter — all-in-one.

4.00 · 547 reviews · 100,000+ downloads

Download from Google Play

About Magnetic Field Meter

Magnetic Field Meter is a tools app developed by SMARTWHO.

Download Statistics

Magnetic Field Meter has been downloaded 130 thousand times. In the last 30 days, the app was downloaded 4.9 thousand times.

User Ratings

Magnetic Field Meter is rated 4.00 out of 5 stars. The rating is based on 550 ratings.

App Information

Magnetic Field Meter is FREE to download. The APK download size is 28.70 MB. The latest version available is 2.7.5. The last update was on July 6, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play July 2022.

Description

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.

Recent changes:
[ Version 2.7.5 ]
- Remove all ads with a monthly or yearly subscription
- Upgraded magnetic-field detection engine for faster, steadier scanning
- Refreshed "Seamless Sky" unified interface
- Improved EMF recording and data view
- Latest SDK updates with stability and bug fixes

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More data about Magnetic Field Meter

Price	Free to download
Total downloads	130 thousand
Recent downloads	4.9 thousand
Rating	4.00 based on 550 ratings
Ranking	Not ranked
Version	2.7.5
APK size	28.7 MB
Number of libraries	56
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Magnetic Field Meter app

Magnetic Field Meter compared with similar apps

Common keywords of similar apps

Signal Wi Fi Ghost Color Data Cellular Rf Hunter Iron Steel Coded Baseline Professional Digital Compass Ferrous Nickel Cobalt Vibration Feedback Silver Copper Aluminum Engine Threshold Continuously Sensitivity Live Magnetic Field Emf Meter Real Detection Metal Time Stud Finder Detector App Magnetometer Detect Studs Accurate Phone Metals Gold Electromagnetic

Keywords missing from this app

Sensor Objects Radiation Readings Find Hidden Devices Built Metallic Device Fields Sound Strength Nearby Works Ultimate Walls Features Tool Measure Easily Simple Recent Alerts Scan Accuracy Level Detects Items Easy

Google Play Rating history and histogram

Rating history

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Downloads over time

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Magnetic Field Meter has been downloaded 130 thousand times. Over the past 30 days, it averaged 160 downloads per day.

Changelog of Magnetic Field Meter

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Developer information for SMARTWHO

SMARTWHO

contact@smartwho.net

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Comments on Magnetic Field Meter for Android

★★★★☆ Richard Baker · May 31, 2024

It detected a magnetic field right away in109ut then after approx. a minute after detection there was no detection of it and reading change to 41 ut It was Strange that once detected It was gone ?

★★★★☆ Adrian Ilie · Aug 6, 2023

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

★★★★★ Jay Shree Ram · May 22, 2024

Fantastic!! I lost my magnetic arrow, and I was thinking that this app would be also fake as other apps I downloaded, but this has helped me so much! Thanks

★★★★☆ Lamia Dollers · Feb 17, 2023

Honestly it Works Perfectly.although I didn't get any Magnetic response maybe my area has N/A Magnetic field or something.overall Great App

★☆☆☆☆ Tamara Rene · Mar 31, 2024

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 DON'T INSTALL THIS SCAM APP.

★☆☆☆☆ Mitch · May 21, 2025

Junk app. Unless you are looking for junk apps then it's 5 stars 🌟🌟🌟🌟🌟

★☆☆☆☆ ever green · Sep 8, 2023

Says no permissions needed, but then you install it and it wants permissions

★☆☆☆☆ petr gorbounov · Jul 8, 2023

Total measured magnetic field in this app depends on the phone orientation. This is Jim nonsense!

★☆☆☆☆ The Coffee Drinker · Jul 29, 2024

Says it doesn't collect data. Then won't let you use app unless you agree for it to collect all your data. Do not download unless you want them to get your data. They are lying on their Google Play Store app page.

Google Play Rankings for Magnetic Field Meter

This app is not ranked

Technologies used by Magnetic Field Meter

21 permissions · 56 libraries

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