Real EMF Detector
Magnetic Field & Gauss Meter
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Measure magnetic fields with real sensor data. Real EMF Detector turns your iPhone into a precision magnetometer using the built-in calibrated magnetic field sensor to detect and measure DC magnetic fields around you.
CALIBRATED SENSOR TECHNOLOGY
- Uses Core Motion calibrated magnetic field data that removes device self-interference
- X, Y, Z axis breakdown showing directional field components
- Total field magnitude in microtesla with continuous updates
- More accurate than raw magnetometer apps that include phone hardware noise
REAL-TIME DETECTOR
- Large circular gauge with smooth animated needle
- Color-coded safety levels: Background, Normal, Elevated, Strong, Very Strong
- Instant response as you move through your environment
- Configurable threshold alerts with haptic feedback
LIVE GRAPH
- Real-time scrolling chart built with Swift Charts
- Track magnetic field changes over time as you scan
- Pinch to zoom and scroll through recorded data
- X, Y, Z axis overlay for detailed field analysis
STUD & METAL SCANNER
- Detect metal objects, pipes, and wiring behind walls
- Find studs by scanning for nail and screw patterns
- Audio and haptic feedback as field strength changes
- Sensitivity adjustment for different scanning needs
SESSION HISTORY
- Record complete measurement sessions with one tap
- Review past sessions with full statistics and timeline
- Export session data as CSV for further analysis
- Stored locally with SwiftData for fast access
LEARN & UNDERSTAND
- Educational guide to magnetic fields and EMF science
- Understand what your readings mean in everyday context
- Reference chart comparing common magnetic field sources
- Safety information based on published exposure guidelines
COMMON USES
- Home inspection: check appliances, wiring, and electrical panels
- Stud finding: locate metal fasteners behind drywall
- Education: learn about magnetism and electromagnetic fields
- Hobby and exploration: investigate unusual magnetic sources
- Workplace assessment: identify strong field areas
HONEST ABOUT LIMITATIONS
Real EMF Detector measures DC magnetic fields using the iPhone magnetometer. It cannot detect RF signals, Wi-Fi, cellular (5G/4G), AC electromagnetic fields, or electric fields. For those measurements, specialized equipment is required. What it does measure, it measures well -- with calibrated data that most competing apps lack.
Built with SwiftUI, Swift Charts, and Core Motion. No ads, no data collection.
Terms of Use: https://emfdetector.mobilealchemy.co/terms
Privacy Policy: https://emfdetector.mobilealchemy.co/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Lifetime unlock is now front and center — own every Pro feature (Ghost Mode & EVP, AR EMF, room heatmaps, unlimited recording, data export) with a single one-time purchase, no subscription required. Prefer to try first? The free trial is still there. Plus performance and stability improvements.
The developer, MOBILE ALCHEMY LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MOBILE ALCHEMY LTD
- Size
- 11.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- EMF Detector Pro $1.99
- EMF Detector Pro $4.99
- EMF Detector Pro $19.99
- EMF Detector Pro – Lifetime $39.99
- Copyright
- © Mobile Alchemy LTD