Comparison

EMF Tracker vs EMF Detector

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

Head to head
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/

About

EMF Detector

This utility app transforms your iPhone's magnetometer into an electromagnetic field scanner. It offers three distinct modes for safety, general readings, and paranormal investigation, with features like measurement history and comparison.

Highlights
  • Magnetometer-based EMF scanning
  • Auto, Safety, and Paranormal modes
  • Measurement history with trend charts
  • Notes and favorites for readings
  • Compare saved readings
  • Calibration offset
  • Share readings as image or CSV
Features
Read full description

EMF Detector reads your phone's magnetometer and shows the magnetic field around you in µT or mG: on a live gauge, as separate X, Y and Z axes, and over the last 24 hours. START IN ONE TAP Tap the gauge, or the green START button under it. The app first separates the phone's own magnetism from the field around you. While it says "Calibrating…", turn the phone slowly in a figure-8 for a few seconds; the live reading then appears and stays steadier while you tilt the phone. A short vibration confirms every start and stop. TWO WAYS TO MEASURE • Standard: a radial gauge with plain-language levels from "No EMF detected" upward. In Settings you can switch it to a Safety view that labels a reading as background, weak field, wiring detected or live wire (an estimate from field strength, not proof of a wire) and sets it against ICNIRP reference levels for the general public or for workers. • Paranormal: records a quiet baseline first, then rates each spike against it on a five-step scale and marks it on a session timeline. FIND THE SOURCE The Source tab turns the reading into a warmer / colder hunt. Move the phone slowly around the room; the indicator shows whether the reading is rising or falling, and the X/Y/Z bars show the sensor's value on each axis. KEEP A RECORD • Measurement sessions are saved with their minimum, average and maximum • A 7-day trend with insights, such as how a reading compares with your usual level • Notes and favorites for each reading, plus a side-by-side compare view • CSV export of your history, and share-as-image for the current reading • A 24-hour exposure chart on the main screen • Peak hold, and "Zero here" to re-learn the baseline in a new spot • Calibration offset, µT or mG units, and a choice of reference levels TIPS FOR A GOOD READING 1. Start away from speakers, magnetic cases and car mounts, and do the figure-8 until the number appears. 2. Hold the phone flat and sweep slowly, a few centimetres from the wall or appliance. 3. Watch for a rise against your starting level rather than one absolute number. 4. Tap "Zero here" when you move to a new room so the baseline is re-learned there. FOR GHOST-HUNTING NIGHTS Spirit Box turns the live field into pulses, vibration and spoken words. It is entertainment: field spikes come from wiring, motors, magnets and the phone itself, and no spirits are detected. A Halloween theme can be switched on in Settings. HONEST TECH NOTE A phone magnetometer measures static and slowly changing magnetic fields: steel, magnets, motors, transformers and wiring under load. It samples about ten times a second, so it cannot measure 50/60 Hz mains fields accurately, and it cannot detect radio frequency, Wi-Fi, 5G or radiation. It is not a certified safety instrument; use it to explore and compare readings around your home. Made for curious people comparing readings around appliances and from room to room, and for paranormal investigators.

Screenshots

EMF Tracker4 screens
EMF Detector3 screens

Verdict

The call

The clearest difference is in-app purchases: EMF Detector at none against EMF Tracker's 2. EMF Tracker's advantage is ads (none vs shown) and device support (3 vs 1). On price, update cadence and iOS requirement 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. EMF Tracker sells 2 in-app purchases, starting at $2.99 per year. EMF Detector asks for nothing beyond the download.

UpkeepUpdate frequency

EMF Tracker ships an update every 5 days, EMF Detector every 4 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
EMF Tracker versus EMF Detector: the parameters behind the verdict, then further details
ParameterEMF TrackerEMF Detector
PriceFreeFree
Rating—3.8 (8 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—8 — better
Update frequencyEvery 5 daysEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size41 MB60 MB
Age rating17+17+
DeveloperPPLST TechKyu-Hee Jang

Customer experience

EMF Tracker

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

EMF Detector

All ratings8 ratings
Positive62.5%
Neutral12.5%
Negative25.0%

In-app purchases

2 purchases

EMF Tracker

Subscriptions2
  • EMF Tracker - Wellness$2.991 Year
  • EMF Tracker - Pro$4.991 Year
None

EMF Detector

No in-app purchases

Questions

Is EMF Tracker free?
EMF Tracker is free to download, with in-app purchases available.
Is EMF Detector free?
EMF Detector is free to download, with no in-app purchases.
Do EMF Tracker or EMF Detector have ads?
EMF Detector shows ads; EMF Tracker does not.
Which is updated more often, EMF Tracker or EMF Detector?
EMF Tracker ships an update every 5 days, and EMF Detector every 4 days. Most recently, EMF Tracker was updated on October 7, 2026 and EMF Detector on October 14, 2026.

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