Ghost Detector &
Spirit Box for iPhone.
A séance simulator for the paranormal-curious — procedurally generated ghost box static, a real EMF meter driven by your device's magnetometer, and a spirit board that spells out its answers letter by letter.
Entertainment app. Every word, spike, and answer is procedurally generated — not a real communication device.
Four tools, one séance.
Spirit Box combines a ghost box, a spirit board, a real EMF meter, and a session log into one app built for the paranormal-curious.
Spirit Box (EVP)
A continuous, never-repeating AM-radio scanning soundscape layered with words that arrive on their own or in response to your voice. Ask a question out loud and listen for what comes through.
Spirit Board
A classic Ouija-style board with a planchette that drifts, letter by letter, to spell out an answer to your question — never revealed up front, only as it's spelled.
Real EMF Meter
A real-sensor field detector that reads your device's actual magnetometer, with baseline calibration and a live disturbance log — not a simulated animation.
Session Log
Every séance is saved with timestamps, so you can revisit what came through. Share a session as a stylized summary card.
Spirit Box Pro
Unlock the Spirit Board, unlimited sessions, and your full session history.
- Full Spirit Board access
- Unlimited Spirit Box sessions
- Complete session history, always saved
- Real EMF meter with disturbance log
Frequently asked questions
How does a spirit box work?
A spirit box scans through radio static, and some people believe spirits can shape that static into words. Spirit Box recreates the experience with a continuous, never-repeating AM-radio soundscape and procedurally generated words that arrive on their own or in response to your voice — entertainment, not a real communication device.
Is Spirit Box a real ghost detector?
No. Spirit Box is an entertainment app. Every word, spike, and spirit board answer is procedurally generated for entertainment purposes, not evidence of paranormal activity. The EMF meter reads your device's real magnetometer, but a magnetometer responds to ordinary magnetic sources like electronics and metal, not spirits.
What is EVP (electronic voice phenomenon)?
EVP refers to sounds or words some people report hearing in static or ambient audio, often interpreted as spirit communication. Spirit Box's ghost-box mode recreates the EVP session format — continuous scanning static layered with words — as a procedurally generated entertainment experience.
How do I use the spirit board in the app?
Open the Board tab (Pro), ask your question out loud, and watch the on-screen planchette drift letter by letter to spell out its answer — never revealed up front, only as it's spelled. It's a classic Ouija-style board built for a phone screen.
Does the EMF meter use my phone's real sensor?
Yes. The EMF tab reads your device's actual built-in magnetometer in real time, with baseline calibration and a disturbance log — it's a real sensor reading, not a simulated animation. It responds to ordinary magnetic sources like electronics and metal, not paranormal activity.
Support
Email SupportEmail support@fosterapps.com and include:
- A short description of what you were doing.
- Steps to reproduce the issue, if you know them.
- What you expected to happen vs what actually happened.
- Your device model and iOS version.
- Any screenshots that might help.
Privacy policy
Read the full policy at the Spirit Box privacy page.