Comparison

EMF Scope 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 Scope

Features
Read full description

Transform your iPhone into a stunning vintage electromagnetic field detector. EMF Scope combines real magnetometer sensor data with a beautifully crafted retro analog meter interface inspired by classic 1950s scientific instruments. --VINTAGE DESIGN-- Experience the charm of mid-century scientific equipment with our meticulously designed analog gauge featuring: • Authentic brass screw accents • Cream-colored meter face with blue arc scale • Smooth, physics-based needle movement • Green, yellow, and red safety zones --REAL-TIME DETECTION-- EMF Scope uses your device's built-in magnetometer to measure electromagnetic fields in real-time. Watch the needle respond to: • Electronic devices and appliances • Power lines and electrical wiring • Magnets and magnetic objects • Metal objects and structures --FEATURES-- • Multiple measurement units: MicroTesla (µT), MilliGauss (mG), and Gauss (G) • One-touch calibration for accurate baseline readings • Atmospheric Geiger-style sound effects • Digital LCD readout display • Light, dark, and system theme options • Works offline - no internet required --PERFECT FOR-- • Curious minds exploring electromagnetic fields • Educational demonstrations • Paranormal investigation enthusiasts • Science and physics hobbyists • Retro tech aesthetic lovers Download EMF Scope and discover the invisible electromagnetic world around you through a beautifully nostalgic lens. --- Disclaimer: EMF Scope is designed for educational and entertainment purposes only. It is not a certified EMF measurement device. Readings may vary based on device sensor quality and environmental factors. Do not use for safety-critical decisions.

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 Scope2 screens
EMF Detector3 screens

Verdict

The call

The clearest difference is ads: EMF Scope at none against EMF Detector's shown. On price, in-app purchases, device support 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
EMF Scope versus EMF Detector: the parameters behind the verdict, then further details
ParameterEMF ScopeEMF Detector
PriceFreeFree
Rating—3.8 (8 ratings) — better
Number of ratings—8 — better
Update frequency—Every 4 days
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size3 MB60 MB
Age rating4+17+
DeveloperAnju PrasadKyu-Hee Jang

In-app purchases

None

EMF Scope

No in-app purchases

None

EMF Detector

No in-app purchases

Questions

Is EMF Scope free?
EMF Scope is free to download, with no in-app purchases.
Is EMF Detector free?
EMF Detector is free to download, with no in-app purchases.
Do EMF Scope or EMF Detector have ads?
EMF Detector shows ads; EMF Scope does not.

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