Real iPhone magnetometer — genuine field readings, never faked numbers
617SW Apps
SpiritTrace: Ghost Detector EMF a real EMF meter, with a paranormal tint.
SpiritTrace is an iPhone entertainment app that reads your phone's real magnetometer and drives a weathered analog gauge — or a digital display — so you can sweep a room for changes in the magnetic field. Raw readings, no random numbers, no fake ghosts.
Local-first
Built around a real sensor
A weathered analog needle gauge with a paranormal purple-green backlit glass
A digital LED-ring display with a live µT readout — toggle either look
One-tap calibration that zeroes to the room so the needle reads real change
Geiger-style clicks and haptics that ramp up as the field climbs
Adjustable sensitivity for different rooms and investigations
For entertainment
SpiritTrace reads a real magnetometer, but interpreting readings as ghosts, spirits, or paranormal activity is for entertainment and atmosphere. It is a novelty meter, not a safety or measurement instrument: it does not measure radiation, and it cannot detect Wi-Fi, Bluetooth, cellular or 5G signals, or microwave leakage.
Questions about SpiritTrace?
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