Comparison

EMF Detector・Ghost Detector vs EctoLens Ghost Hunter

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

Head to head
About

EMF Detector・Ghost Detector

This app transforms your phone into a real-time magnetic field detector, displaying readings in microtesla or milligauss. It features a detailed instrument panel, alert functions, and a unique ghost detector mode for entertainment. Record and export your sessions for later review.

Highlights
  • Real-time magnetic field detection
  • Instrument panel with live readings and graphs
  • Adjustable threshold alerts
  • Ghost Detector mode
  • Session recording and CSV export
  • Offline functionality
Features
Read full description

EMF Detector turns your phone into a real-time magnetic field detector. Point it at wiring, a running appliance or a magnet and watch the reading move — a pocket EMF meter that shows what is actually around you, in microtesla (µT) or milligauss (mG). A MAGNETIC FIELD METER YOU CAN READ AT A GLANCE The main screen is a full instrument panel: a large live number, an analog gauge, the X, Y and Z axes, and a rolling 60-second graph so you see the trend and not just the moment. Peak hold keeps the highest value you passed through, and live Min / Avg / Max show what the room has been doing. Switch between µT and mG whenever you like — the same units a gauss meter or gaussmeter shows — and your choice is remembered. Readings fall into three bands so a number means something. Below 60 µT is Typical, 60–100 µT is Elevated, and 100 µT or more shows as a Strong Field — a sign that something magnetic or powered is close. Turn on the alert and the app sounds and vibrates when the reading crosses your threshold, so you can sweep a wall without staring at the screen. FIND THE SOURCE Move slowly past outlets, cables, speakers, laptops, a running microwave, the breaker panel or a fridge door. Used as an EMF scanner the value climbs as you close in, and peak hold marks the strongest spot you found. The built-in Common Readings table lists typical ranges for more than ten everyday sources and highlights the row your reading falls into — so you can tell the Earth's field from something live inside a wall. GHOST DETECTOR MODE For ghost hunting nights, switch to Ghost Detector: a dark, reactive K-II style display — the K2 meter look ghost hunters know — where the same total magnetic field drives a five-level segment readout and an apparition that grows stronger as the field rises. It is free, it uses no separate sensor and no hidden logic — and it is clearly labelled as entertainment. RECORD AND REVIEW Record a session while you walk a room. The app logs a one-second timeline with duration, Min, Avg, Max and Peak, and keeps it in History so you can reopen it, see the chart, rename or delete it. Export a session as CSV — timestamp, x, y, z, magnitude, unit — to keep or share. WHAT IS IN THE APP • Live magnetic field meter in µT and mG • Analog gauge, large readout and X / Y / Z axes • 60-second chart, peak hold, Min / Avg / Max • Typical / Elevated / Strong Field bands • Threshold alert with sound and haptics • Ghost Detector, a free K-II style reactive mode • Always-on spike rejection so the number does not jitter • Session recording with a 1 Hz timeline and statistics • History list, session chart, rename and delete • CSV export through the system share sheet • Common Readings table with live row highlighting • Guide to EMF, reading levels and calibration • Fully offline — no account, no network, no ads HONEST ABOUT WHAT A PHONE CAN MEASURE Your phone has a magnetometer, the same sensor the compass uses. EMF Detector reads the total magnetic flux density near that sensor and nothing else. It cannot measure radio frequency — no Wi-Fi, no Bluetooth, no 5G, no ionizing radiation — because a phone has no RF sensor. The bands help you locate sources; they are not a health or safety verdict, and this is not a substitute for a calibrated professional EMF meter. Ghost Detector is entertainment and cannot identify anything paranormal. For the steadiest reading, move your phone in a figure-8 to calibrate, take off magnetic cases and mounts, and move slowly. Exporting sessions as CSV requires a subscription (weekly or monthly, each with a 3-day free trial). Everything else here — the meter, the bands, the fixed alert, Ghost Detector, the reference table and your three latest sessions — is free. Terms of Use: https://zeroplay.io/docs/legal/terms-of-service Privacy Policy: https://zeroplay.io/docs/legal/privacy-policy

About

EctoLens Ghost Hunter

Features
Read full description

Your phone already has everything a ghost hunter needs. EctoLens turns its real sensors into paranormal instruments and wraps them in a story that only works with the lights off. THE ECTO LENS Point your camera into a dark room and watch through the lens. Walk, and the rig notices. Stay long enough, and something may cross the frame. Every apparition can be photographed and kept in your Case Log. REAL SENSORS, REAL READINGS The needles move because your phone's actual hardware moves them: - EMF meter driven by the magnetometer - Field Scan reading air pressure, light and motion - Spirit Box sweeping with real audio feedback - A sound meter that listens while you speak Where a phone lacks a sensor, the app says so. It never invents a reading. THE INCANTATION RITE Find darkness. Press INCANTATION. Read the words on screen out loud - the microphone measures whether you actually spoke them. Most rites go unanswered. Some do not. A VOICE ON THE CHANNEL A narrative voice guides each hunt and reacts to what you really do: stop walking and it notices, cover the lens and it complains, pass midnight and it changes tone. Four different arcs, one drawn per hunt. You can switch the voice off in Settings. BUILT FOR THE DARK The lens warns you when there is too much light. Hunt at night, in a dark hallway, a cellar, an attic. The story is written for it. FREE TO TRY The Ecto Lens is free for six minutes of use. One single purchase unlocks it forever - no subscription, nothing to cancel. The EMF meter, Spirit Box, Field Scan and Case Log stay free. HONEST BY DESIGN EctoLens is entertainment. It does not detect ghosts and nothing it shows is evidence of the paranormal. The readings are real sensor data; the hauntings are fiction. Play with the lights off anyway. Please explore safely: watch where you walk, and only enter places you are allowed to be.

Screenshots

EMF Detector・Ghost Detector4 screens
EctoLens Ghost Hunter4 screens

Verdict

The call

The clearest difference is ads: EctoLens Ghost Hunter at none against EMF Detector・Ghost Detector's shown. EMF Detector・Ghost Detector's advantage is device support (3 vs 1). On price, in-app purchases 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 Detector・Ghost Detector sells 2 in-app purchases, starting at $7.99 per 7 days and EctoLens Ghost Hunter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 7 level
EMF Detector・Ghost Detector versus EctoLens Ghost Hunter: the parameters behind the verdict, then further details
ParameterEMF Detector・Ghost DetectorEctoLens Ghost Hunter
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeks—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size99 MB98 MB
Age rating9+12+
DeveloperZeroPlay Ltd.MEDIASTAGE S.R.L.

In-app purchases

2 purchases

EMF Detector・Ghost Detector

Subscriptions2
  • Weekly3 Days trial$7.997 Days
  • Monthly3 Days trial$19.991 Month
1 purchases

EctoLens Ghost Hunter

One-time1
  • EctoLens PRO$1.99

Questions

Is EMF Detector・Ghost Detector free?
EMF Detector・Ghost Detector is free to download, with in-app purchases available.
Is EctoLens Ghost Hunter free?
EctoLens Ghost Hunter is free to download, with in-app purchases available.
Do EMF Detector・Ghost Detector or EctoLens Ghost Hunter have ads?
EMF Detector・Ghost Detector shows ads; EctoLens Ghost Hunter does not.

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