Comparison

Magnetic Field Scanner vs WaveBlock® EMF Meter

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

WaveBlock® EMF Meter

This application transforms your phone into an EMF detector, allowing you to measure electromagnetic field levels in real-time. It helps identify potential radiation sources and understand your exposure from electronic devices and power lines.

Highlights
  • Real-time EMF detection
  • Accurate measurement with device sensors
  • Color-coded EMF zone indicators
  • EMF history log
  • Identify EMF hotspots
  • Create safer environments
Features
Read full description

Your phone just became a powerful EMF (Electromagnetic Field) detector. With WaveBlock® EMF Meter, you can quickly and accurately measure EMF levels around you, helping you understand and reduce your exposure to potentially harmful radiation from electronic devices, power lines, and wireless networks. Key Features: Real-Time EMF Detection – Instantly see EMF levels in your environment. Accurate Measurement – Uses your device’s built-in sensors for precise readings. Easy-to-Read Display – Color-coded indicators show safe, moderate, or high EMF zones. EMF History Log – Track and compare readings over time. Why Use WaveBlock®? From Wi-Fi routers and smartphones to household appliances and power cables, EMF is all around us. While invisible to the naked eye, high EMF exposure has raised health concerns for many people. WaveBlock® EMF Meter helps you: - Identify EMF “hotspots” in your home, workplace, or neighborhood. - Make informed decisions about where you spend your time. - Create safer living and working environments for you and your family. Perfect For: - Health-conscious individuals - Parents and families - People working near electronics or power sources - Anyone curious about their EMF exposure WaveBlock® EMF Meter is simple enough for everyday use yet powerful enough for professional monitoring. With real-time detection, historical tracking, and easy visualization, you have everything you need to make EMF safety a part of your daily routine. Disclaimer: WaveBlock® EMF Meter uses your device’s internal sensors to provide approximate EMF readings. It is not a medical device and should not be used as a substitute for professional equipment or advice. Download WaveBlock® EMF Meter today and take control of your environment!

Screenshots

Magnetic Field Scanner4 screens
WaveBlock® EMF Meter4 screens

Verdict

The call

The clearest difference is rating: WaveBlock® EMF Meter at 5.0 against Magnetic Field Scanner's 4.3. WaveBlock® EMF Meter also leads on in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 2 months). Magnetic Field Scanner's advantage is ratings volume (12 vs 1). On price, ads 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

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. WaveBlock® EMF Meter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

WaveBlock® EMF Meter holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Magnetic Field Scanner has 12 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Magnetic Field Scanner ships an update every 2 months, WaveBlock® EMF Meter every 2 weeks. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.

Scorecard6 real differences · 3 level
Magnetic Field Scanner versus WaveBlock® EMF Meter: the parameters behind the verdict, then further details
ParameterMagnetic Field ScannerWaveBlock® EMF Meter
PriceFreeFree
Rating4.3 (12 ratings)5.0 (1 ratings) — better
Number of ratings12 — better1
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size5 MB23 MB
Age rating4+4+
DeveloperHoang LeWaveBlock LLC

Customer experience

Magnetic Field Scanner

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

WaveBlock® EMF Meter

All ratings1 ratings
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
None

WaveBlock® EMF Meter

No in-app purchases

Questions

Is Magnetic Field Scanner free?
Magnetic Field Scanner is free to download, with in-app purchases available.
Is WaveBlock® EMF Meter free?
WaveBlock® EMF Meter is free to download, with no in-app purchases.
Which has better reviews, Magnetic Field Scanner or WaveBlock® EMF Meter?
WaveBlock® EMF Meter is rated higher. Magnetic Field Scanner averages 4.3 out of 5 from 12 ratings, while WaveBlock® EMF Meter averages 5.0 from 1 ratings.
Do Magnetic Field Scanner or WaveBlock® EMF Meter have ads?
Neither Magnetic Field Scanner nor WaveBlock® EMF Meter shows ads.
Which is updated more often, Magnetic Field Scanner or WaveBlock® EMF Meter?
Magnetic Field Scanner ships an update every 2 months, and WaveBlock® EMF Meter every 2 weeks. Most recently, Magnetic Field Scanner was updated on September 25, 2026 and WaveBlock® EMF Meter on October 7, 2026.

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