# Eerie:Infrasound & EMF Sensor — Vibration, tilt & field meter > Vibration, tilt & field meter (iPhone/iPad app by TIMOTHY EDWARD LEAVY.) - Source: https://appshunter.io/ios/app/eerieinfrasound-and-emf-sensor/id6809514047 (this page in markdown: same URL + `.md`) - Developer: [TIMOTHY EDWARD LEAVY](https://appshunter.io/developer/6774936654) - Category: Utilities - Price: $9.99 - Age rating: 4+ - Requires: iOS 17.6 · 1 MB - Languages: American English - Released: 2026-09-24 - Data updated: 2026-10-26 ## What is Eerie? Nothing in Eerie is randomised. No word banks, no entity readings, no invented results. It reports what the phone sensors read and nothing more — and it will never tell you a room is haunted. Set your phone on a table in the room that unsettles you. Eerie spends about 45 seconds learning what that room is normally like, then watches for anything that deviates from it. WHAT IT MEASURES • Infrasound — sound below human hearing, with focus on the 17–20 Hz band. Low-frequency energy in this range is associated with unease, chills and peripheral visual disturbance. • Magnetic field — total field strength in microtesla. • Vibration — movement and structural tremor through the surface it rests on. • Sound level — logged as numbers only. IF YOU CAME LOOKING FOR AN EMF DETECTOR Eerie measures the magnetic field in microtesla, which is what phone-based "EMF" apps actually read. It cannot measure electric fields or radio frequency — no phone can, because no phone has the hardware. Any app claiming otherwise is showing you numbers it invented. A plus point is the field monitor will not be set off by mobile phone signals. HOW A SESSION WORKS Every reading is compared against your room's own baseline, not an absolute scale that would mean nothing in a house with underfloor heating and a fridge. When something crosses the threshold, Eerie logs it with a timestamp — and lists the ordinary explanations first: a compressor cycling, wiring in the wall, a passing lorry, the boiler. If several sensors register at the same moment, that correlation is shown too. Things with a physical cause tend to move more than one needle. INSTRUMENTS • Room Scan — the main instrument. Set the phone down, step away, and all four sensors run against the room's own baseline for as long as you leave it. • Field Meter — a handheld magnetic field reading in microtesla, for walking a space rather than watching one. • Table Watch — for table-tipping and seance work. Rests on the surface and sounds an alert if it tilts or lifts past a set angle. WHAT IT WON'T DO It won't name anything. It won't speak, generate words, or interpret. If you felt something and Eerie shows a clean baseline for the whole session, Eerie has no opinion about what that means. That is the honest answer, and it is the one this app is built to give. PRIVACY Audio becomes numbers as it arrives and is discarded. Nothing is recorded, stored, or transmitted. There is no account, no analytics, and no network connection. Your readings never leave the phone — they are not even saved on it. LIMITATIONS, PLAINLY iPhone microphones are not calibrated below roughly 20 Hz and their response falls away steeply. Eerie measures relative change against the room's baseline, not absolute sound pressure. It is a comparison instrument, not a laboratory one. One purchase. No subscription. ## Is Eerie safe? Not enough ratings yet to assess Eerie. ## Is Eerie legit? Eerie:Infrasound & EMF Sensor appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Eerie is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### V1.1.3 — 2026-10-25 Fixed: if you bought Eerie from the App Store, the app could still ask you to pay a second time inside the app. Eerie now unlocks from your App Store download, and no further purchase is needed. If you were charged twice, you can ask Apple for a refund of the in-app purchase at reportaproblem.apple.com. ### V1.1.1 — 2026-10-23 Minor UI changes. ### V1.1.0 — 2026-10-05 Two new instruments, and a new home screen to reach them from. THE FIELD METER A handheld mode. Carry the phone and watch the magnetic field live in microtesla, on a dial with the Earth's field marked so a reading means something rather than being a number on its own. It is not the same instrument as the meters sold for ghost hunting, and it says so. Those respond to the alternating field around mains wiring, which a phone cannot measure — but it is also why a mobile in someone's pocket sets them off, and nothing can set this one off. It also tells you whether you were moving, which no other handheld meter does. Walking a sensor towards metal raises the reading on any meter. Hold still and this one watches from where it settled, because a change measured with the phone stationary is worth more than one measured mid-sweep. THE TABLE WATCH Lay the phone on the table during a sitting and it measures tilt to a hundredth of a degree, with vibration alongside. The screen dims so it does not light the room, and brightens when the table moves. Before you begin it says what the usual explanation is — the ideomotor effect, small muscular movements made without being aware of making them. Everyone at the table can be honest and the table can still move. Eerie measures what the table did. It will never tell you what moved it. ALSO Eerie now opens on a chooser, so the room scan, the field meter and the table watch are each one tap away. Nothing new is saved anywhere. Both new modes keep their readings only while they are on screen. ### V1.0.1 — 2026-09-25 Fixes a bug that could show the purchase screen again after a purchase had already gone through. ### 1.0 — 2026-09-25 No release notes. ## More apps by TIMOTHY EDWARD LEAVY - [MeanWeather:Real Feel Temp](https://appshunter.io/ios/app/meanweatherreal-feel-temp/id6774936652) - [Pausely: Pause Home Visits](https://appshunter.io/ios/app/pausely-pause-home-visits/id6813881194) All apps by TIMOTHY EDWARD LEAVY: https://appshunter.io/developer/6774936654 --- *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 2026-10-26.*