Comparison

Pole Detector vs Magnetic Field Scanner

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

Head to head
About

Pole Detector

Easily identify the north and south poles of a magnet using your smartphone's Teslameter. This tool is ideal for scientific experiments or any production involving magnets.

Highlights
  • Identify north and south magnetic poles
  • Uses smartphone Teslameter
  • Assists with magnet experiments
  • Useful for magnet production
Features
Read full description

This app makes it easy to identify the north and south pole of a magnet. Simply point the smartphone toward the magnet and it shows the pole with the help of the Teslameter. This helps with experiments or productions where magnets are used.

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/

Screenshots

Pole Detector4 screens
Magnetic Field Scanner4 screens

Verdict

The call

The clearest difference is in-app purchases: Pole Detector at none against Magnetic Field Scanner's 3. Pole Detector also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (11.0 vs 17.6). On price, rating, ratings volume and ads 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. Pole Detector asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.1 for Pole Detector against 4.3 for Magnetic Field Scanner. Both are backed by a comparable volume of ratings — 8 and 12 respectively.

UpkeepUpdate frequency

Pole Detector ships an update every 10 days, Magnetic Field Scanner every 2 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Pole Detector versus Magnetic Field Scanner: the parameters behind the verdict, then further details
ParameterPole DetectorMagnetic Field Scanner
PriceFreeFree
Rating4.1 (8 ratings)4.3 (12 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings812 — better
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better17.6
Further details — not scored
Size24 MB5 MB
Age rating4+4+
DeveloperWebcraft AGHoang Le

Customer experience

Pole Detector

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

Magnetic Field Scanner

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

In-app purchases

None

Pole Detector

No 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

Questions

Is Pole Detector free?
Pole Detector is free to download, with no in-app purchases.
Is Magnetic Field Scanner free?
Magnetic Field Scanner is free to download, with in-app purchases available.
Which has better reviews, Pole Detector or Magnetic Field Scanner?
Magnetic Field Scanner is rated higher. Pole Detector averages 4.1 out of 5 from 8 ratings, while Magnetic Field Scanner averages 4.3 from 12 ratings.
Do Pole Detector or Magnetic Field Scanner have ads?
Neither Pole Detector nor Magnetic Field Scanner shows ads.
Which is updated more often, Pole Detector or Magnetic Field Scanner?
Pole Detector ships an update every 10 days, and Magnetic Field Scanner every 2 months. Most recently, Pole Detector was updated on October 24, 2026 and Magnetic Field Scanner on October 24, 2026.

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