# EMF Detector・Ghost Detector — Magnetic Field Meter & Reader > Magnetic Field Meter & Reader (iPhone/iPad app by ZeroPlay Ltd..) - Source: https://appshunter.io/ios/app/emf-detectorghost-detector/id6790258196 (this page in markdown: same URL + `.md`) - Developer: [ZeroPlay Ltd.](https://appshunter.io/developer/1500119722) - Category: Entertainment, Productivity - Price: Free with in-app purchases - Age rating: 9+ - Requires: iOS 15.1 · 43 MB - Languages: American English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany) and 23 more - Released: 2026-08-10 - Data updated: 2026-08-26 - User reviews in markdown: https://appshunter.io/ios/app/emf-detectorghost-detector/id6790258196/reviews.md ## What is EMF Detector・Ghost Detector? 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Weekly | $7.99 | per 7 days | | Monthly | $19.99 | per month | ## Version history (last 1 release) ### 1.0 — 2026-08-10 No release notes. ## More apps by ZeroPlay Ltd. - [Cube Solver & Timer](https://appshunter.io/ios/app/cube-solver-and-timer/id1500120768) - [魔方还原器：教学练习・魔方学院・魔方计时器](https://appshunter.io/ios/app/id1547076999) - [Backgammon 3D Online](https://appshunter.io/ios/app/backgammon-3d-online/id1661411376) - [Backgammon Mint](https://appshunter.io/ios/app/backgammon-mint/id6739750400) - [Cube Solver - 50+ Puzzles](https://appshunter.io/ios/app/cube-solver-50-plus-puzzles/id6744553308) - [Solitaire - Klondike Cards+](https://appshunter.io/ios/app/solitaire-klondike-cards-plus/id6753621971) All apps by ZeroPlay Ltd.: https://appshunter.io/developer/1500119722 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*