Capture evidence
Record EVP audio, custom video, rapid photos, and motion-triggered events from one investigation workspace.
THRESHOLD
Threshold: Paranormal HQ
Your paranormalcommand center.
Capture, organize, review, and revisit investigation evidence—with synchronized magnetic context when available—inside one focused native iPhone workspace.
Available on the App Store
ONE STRUCTURED WORKSPACE
Capture the investigation. Keep the context.
Threshold brings live field tools, evidence capture, review, and investigation organization together without scattering the record across separate apps.
Investigate with live tools
Monitor vibration, magnetic-field changes, audio levels, and live Spirit Box activity during a Session.
Review what happened
Revisit waveforms, playback moments, markers, photos, videos, magnetic timelines and snapshots, saved Spirit Box runs, and Trigger Details.
Organize by Session and Area
Keep locations, rooms, evidence, notes, and saved runs connected to the investigation where they belong.
Preserve investigation context
Review readings alongside timing, movement, nearby electronics, questions asked, and other field observations. Interpretation remains with the investigator.
Built as a native iPhone app
Designed for focused dark-mode use with responsive portrait and landscape workspaces where the tools require them, including a custom Video Capture interface.
On supported devices, Threshold can save synchronized magnetic timelines with EVP audio and custom video, plus capture-time magnetic snapshots with photos and Motion Camera images. Rotating the device briefly recalibrates magnetic sensing; live readings resume after the device settles.
APP STORE PREVIEWS
See the investigation workflow.
From field capture to structured review, each screen is designed around a real stage of the investigation process—including magnetic timelines and capture-time snapshots on supported devices.
CHOOSE YOUR WORKFLOW
The full suite—or a focused Spirit Box lab.
Threshold: Paranormal HQ
Built for complete investigations that combine evidence capture, live tools, organized Sessions and Areas, synchronized magnetic context, review workflows, and the Spirit Box inside one command center.
Prefer a focused Spirit Box experience?
Threshold: Spirit Box Lab delivers the sensor-driven Spirit Box, saved runs, Trigger Details, Magnetic Field Monitor, and Vibration Beacon in a streamlined standalone app.