Comparison

Magnetic Field Scanner vs EMF Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

EMF Tracker

This app measures electromagnetic field (EMF) levels using your phone's magnetometer. It provides real-time data, professional charts, and AI-powered insights to help you understand and manage your exposure. Track trends, identify patterns, and receive personalized advice to reduce potential risks.

Highlights
  • Real-time EMF detection
  • Professional charts and graphs
  • AI-powered insights and tips
  • Trend and pattern analysis
  • History and data export
  • 4-tier safety levels
Features
Read full description

EMF Tracker is your comprehensive electromagnetic field detector. Measure EMF levels, and get AI-powered insights to understand your exposure — all from your phone. EMF Tracker uses your phone’s magnetometer for detecting the EMF levels. REAL-TIME EMF DETECTION * Instant electromagnetic field measurements in µT * Automatic sensor calibration * 4-tier safety levels (Safe → Caution → Unsafe → Danger) PROFESSIONAL CHARTS * Real-time EMF graphs with live updates * Daily, weekly, monthly, yearly views * Visualize your exposure patterns * Track changes over time AI-POWERED INSIGHTS * Personalized tips based on your EMF data * Smart time-of-day recommendations * Pattern analysis: weekday vs weekend * "Down 15% from last week" style insights * Actionable advice to reduce exposure TRENDS & PATTERNS * Compare today vs yesterday exposure * Weekly and monthly trend analysis * Peak hours identification * Day-of-week patterns * Weekend vs weekday comparisons HISTORY & EXPORT * Complete scan history with timestamps * Add location notes (Home, Office, Bedroom) * Export data for external analysis * Track your EMF journey over time  SAFETY LEVELS - Based on ICNIRP guidelines: * SAFE (Green): Normal background levels * CAUTION (Amber): Elevated — monitor closely * UNSAFE (Orange): High — limit time here * DANGER (Red): Very high — move away PERFECT FOR: * Health-conscious home monitoring * Parents checking kids' rooms * Office workers assessing workspace * Anyone curious about EMF exposure * Identifying wireless device hotspots Download EMF Tracker and take control of your electromagnetic environment! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Magnetic Field Scanner4 screens
EMF Tracker4 screens

Verdict

The call

The clearest difference is update cadence: EMF Tracker at every 5 days against Magnetic Field Scanner's every 2 months. EMF Tracker also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Magnetic Field Scanner sells 3 in-app purchases, starting at $5.99 per month and EMF Tracker sells 2 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Magnetic Field Scanner ships an update every 2 months, EMF Tracker every 5 days. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Magnetic Field Scanner versus EMF Tracker: the parameters behind the verdict, then further details
ParameterMagnetic Field ScannerEMF Tracker
PriceFreeFree
Rating4.3 (12 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings12 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size5 MB41 MB
Age rating4+17+
DeveloperHoang LePPLST Tech

Customer experience

Magnetic Field Scanner

All ratings12 ratings
Positive83.3%
Neutral8.3%
Negative8.3%

EMF Tracker

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Magnetic Field Scanner

Subscriptions2
  • MagnetoScanner Month Pass$5.991 Month
  • MagnetoScanner Year PAss$29.991 Year
One-time1
  • MagnetoScanner Lifetime Access$39.99
2 purchases

EMF Tracker

Subscriptions2
  • EMF Tracker - Wellness$2.991 Year
  • EMF Tracker - Pro$4.991 Year

Questions

Is Magnetic Field Scanner free?
Magnetic Field Scanner is free to download, with in-app purchases available.
Is EMF Tracker free?
EMF Tracker is free to download, with in-app purchases available.
Do Magnetic Field Scanner or EMF Tracker have ads?
Neither Magnetic Field Scanner nor EMF Tracker shows ads.
Which is updated more often, Magnetic Field Scanner or EMF Tracker?
Magnetic Field Scanner ships an update every 2 months, and EMF Tracker every 5 days. Most recently, Magnetic Field Scanner was updated on September 25, 2026 and EMF Tracker on October 7, 2026.

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