Threshold: Paranormal HQ
Ghost Hunting Toolkit
Only for iPhone
Free · In‑App Purchases
iPhone
Use Spirit Box Lab, capture EVP, video, photos, motion events, and magnetic activity—all inside one organized paranormal command center.
Threshold is a paranormal investigation command center for capturing, monitoring, organizing, and reviewing field evidence in one place. Use Spirit Box Lab, record EVP audio, capture custom video, monitor magnetic fields, motion, vibration, and audio levels, take photos, and keep everything connected by Session and Area.
Create a Session for each investigation and preserve audio, video, photos, motion events, markers, notes, magnetic context, and Spirit Box Lab runs for later review.
SPIRIT BOX LAB
Spirit Box Lab uses calibrated live magnetic-field and device-motion activity to generate indexed word outputs from a curated 2,048-entry production vocabulary.
Outputs are driven by live sensor activity rather than released through a simple repeating word timer.
Choose a Session, Area, sensitivity, and spoken-output setting before beginning a run. Generated outputs, timing, contributing sensor activity, and Trigger Details are saved for later review and interpretation.
Free users receive 15 minutes of complimentary Spirit Box Lab monitoring time, with up to 5 minutes per run. Upgrade to Threshold Pro for unlimited Spirit Box Lab access.
CAPTURE INVESTIGATION EVIDENCE
• Record EVP audio
• Capture video with Threshold’s custom camera interface
• Use pinch zoom, precision zoom, and torch controls
• Take rapid investigation photos
• Monitor a fixed camera scene for motion-triggered events
• Import supported audio, video, and photos
• Save evidence directly to a Session and Area
MAGNETIC CONTEXT
On supported devices, Threshold can preserve magnetic activity alongside captured evidence.
• EVP audio and video can include synchronized magnetic timelines
• Photos and Motion Camera images can include capture-time magnetic snapshots
• Review readings, baselines, changes, activity levels, and timestamps
• Add markers from a selected magnetic timeline moment
Rotating the device briefly recalibrates magnetic sensing. Threshold may display CALIBRATING before live readings resume.
If magnetic sensing is unavailable, capture and review continue normally without magnetic context.
LIVE INVESTIGATION TOOLS
Magnetic Field Monitor
View live magnetic-field readings, baseline changes, peak activity, and individual axis values.
Motion Camera
Monitor a fixed scene and capture images when visual movement is detected.
Vibration Beacon
Monitor device movement and surface vibration with adjustable sensitivity.
Audio Level Meter
Watch relative sound-level changes through a responsive live display.
REVIEW IMPORTANT MOMENTS
• Review audio with detailed waveform timelines
• Review synchronized magnetic activity when available
• Replay key moments
• Add timestamped markers and notes
• Review saved videos, photos, and motion events
• Review magnetic snapshots saved with supported images
• Review saved Spirit Box Lab runs and Trigger Details
• Move evidence between Sessions and Areas
ORGANIZED BY SESSION AND AREA
Threshold keeps investigation evidence connected to its context.
Use Sessions for separate investigations and Areas for rooms, zones, or locations within each Session. Evidence can also remain Unassigned and be reorganized later.
SESSION EXPORT
Threshold Pro can export a structured Session package containing investigation details, evidence files, markers, Motion Camera metadata, Spirit Box run data, magnetic timelines, and magnetic snapshots.
THRESHOLD PRO
Upgrade once for lifetime access to:
• Unlimited Sessions
• Unlimited Areas
• Unlimited saved evidence
• Unlimited markers
• Unlimited Spirit Box Lab access
• Session export
Threshold Pro is a one-time in-app purchase. No subscription is required.
PRIVACY-FOCUSED
Threshold does not require an account. Core investigation data is stored locally on your device, and you control what you export or share.
Threshold is designed for iPhone.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Threshold 1.1 expands evidence capture and review with deeper magnetic context and a rebuilt Video Capture experience.
• New custom Video Capture interface
• Pinch zoom and precision zoom controls
• Torch Auto, On, and Off controls on supported devices
• Automatic video saving with quick consecutive recording to the same Session and Area
• Live magnetic activity during EVP Audio and Video Capture
• Synchronized magnetic timelines in Audio and Video Review
• Capture-time magnetic snapshots for photos and Motion Camera images
• Magnetic detail views with readings, baselines, changes, activity levels, and timestamps
• Add markers directly from selected magnetic timeline moments
• Improved rotation handling with brief recalibration and rotation-spike suppression
• Improved camera and microphone permission recovery
• Expanded Session exports with magnetic timelines, snapshots, and supporting metadata
• Additional reliability, compatibility, and review improvements
The developer, Brandon Romero, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Brandon Romero
- Size
- 8.4 MB
- Category
- Entertainment
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Horror/Fear Themes
- In-App Purchases
Yes
- Threshold Pro Lifetime $14.99
- Copyright
- © 2026 Brandon Romero
