EMF Hunter vs Magnetic Field Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EMF Hunter
Transform your phone into an electromagnetic field detector. It uses your device's internal compass to measure magnetic and electric fluctuations, displaying readings through meters, graphs, and particle effects. Ideal for educational or entertainment purposes.
- Detects magnetic field strength in three dimensions
- Easy-to-read meter with LED indicators
- Multiple graph views (line, bar, polar, pie)
- Particle mode visualizes magnetic force
- Start and pause detection functionality
- Displays force in microteslas
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------------- EMF Hunter ------------- This app is intended for entertainment purposes only. This app supports devices with an internal compass. This includes iPhone 3GS and newer iPhone devices. ------------- Description ------------- User your phone as an EMF (electromagnetic field) detector. This app uses the power of your phones internal compass to detect magnetic and electric fluctuations in the environment around you. This is perfect for people looking to detect magnetic fields: teachers, students, technophiles, and even Ghost hunters! This app is not intended to be a scientific instrument, and it's readings are subject to external conditions and the accuracy of the device's internal compass. ------------- Features ------------- * Detects the strength of magnetic fields in all three dimensions * Easy to read meter lets you gauge with a simple look the strength of fields in different directions * Light up LED icons display showing field strength, the more LED icons that light up, the more force there is * Graph view shows the changing values of the field from all three dimensions * Line Graph * Bar Graph * Polar Graph * Pie Graph * Particle Mode - the more magnetic force the more particles * Ability to start and pause detection * Magnetic force is calculated in microteslas
Magnetic Field Scanner
This utility app uses your phone's magnetometer to detect unusual magnetic field spikes, which may indicate the presence of hidden electronic devices. It provides real-time alerts, visual graphs, and customizable sensitivity to help you scan your surroundings for potential privacy threats.
- Real-time magnetic field scanning
- Hidden device alerts with adjustable sensitivity
- Live visual graph of magnetic signals
- 3-axis sensor readouts
- Data history for pattern spotting
- Offline and private operation
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Worried someone might be spying on you? Instantly scan for hidden cameras, GPS trackers, and spy bugs using your phone. Spy Detector: EMF Scanner helps you protect your privacy with real-time magnetic field detection and instant alerts. HOW IT WORKS Your phone already has a magnetometer sensor built in — the same one used by compasses. Spy Detector transforms that sensor into a powerful EMF scanner, letting you identify unusual magnetic activity around you. Such magnetic spikes may occur near hidden electronic devices, metal objects, or power sources. FEATURES - Smart EMF scanner: Uses your device’s magnetometer to measure real-time magnetic field strength in microteslas (µT). - Hidden device alerts: Set sensitivity levels and get instant audio or vibration alerts when magnetic readings suddenly spike. - Live visual graph: Watch real-time waveforms of detected signals as you move your phone around. - Customizable sensitivity: Adjust thresholds for different environments (home, car, office, hotel). - 3-axis readouts: View detailed X, Y, Z sensor values for precise analysis. - Data history: Quickly review recent magnetic field changes to spot patterns. - Clean, discreet interface: Dark “matrix-style” visuals that look sleek and reduce glare in low light. - Offline & private: No internet, no tracking. All processing happens locally on your device. HOW TO USE 1. Open the app, tap on "SCAN" to start scanning. 2. Move your phone slowly around suspicious areas (mirrors, walls, smoke detectors, switches). 3. Watch for magnetic spikes on the live graph or listen for alerts. 4. Adjust sensitivity if needed to reduce false signals. 5. Use vibration mode for silent, discreet scanning. PERFECT FOR - Travelers checking hotel rooms or rentals - Anyone concerned about hidden recording devices - Security-minded professionals or journalists - Students and hobbyists exploring EMF fields - Everyday users who value privacy and peace of mind Protect your privacy today. Download Spy Detector: EMF Scanner and take control of your personal space. IMPORTANT NOTE Spy Detector: EMF Scanner uses your device’s built-in magnetometer to detect changes in magnetic fields. While strong spikes may indicate nearby electronic components, magnets, or metal structures, the app cannot guarantee detection of hidden cameras or GPS trackers in every case. Use it as a first-line privacy tool and combine it with visual inspection for best results. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: EMF Hunter at none against Magnetic Field Scanner's 3. EMF Hunter also leads on iOS requirement (13.0 vs 17.6). Magnetic Field Scanner's advantage is ads (none vs shown) and update cadence (every 2 months vs every 22 months). On price, ratings volume and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Magnetic Field Scanner sells 3 in-app purchases, starting at $5.99 per month. EMF Hunter asks for nothing beyond the download.
Magnetic Field Scanner holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 10 and 12 respectively.
EMF Hunter ships an update every 22 months, Magnetic Field Scanner every 2 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.
| Parameter | EMF Hunter | Magnetic Field Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (10 ratings) | 4.3 (12 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 | 12 — better |
| Update frequency | Every 22 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Derek Hoffmeister | Hoang Le |
Customer experience
EMF Hunter
Magnetic Field Scanner
In-app purchases
EMF Hunter
No in-app purchases
Magnetic Field Scanner
- MagnetoScanner Month Pass$5.991 Month
- MagnetoScanner Year PAss$29.991 Year
- MagnetoScanner Lifetime Access$39.99
Questions
Is EMF Hunter free?
Is Magnetic Field Scanner free?
Which has better reviews, EMF Hunter or Magnetic Field Scanner?
Do EMF Hunter or Magnetic Field Scanner have ads?
Which is updated more often, EMF Hunter or Magnetic Field Scanner?
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