GhostScope vs Threshold
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GhostScope
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GhostScope is a ghost-hunting kit for fun. It cannot detect ghosts: it shows what your phone's sensors pick up and adds playful tools. EMF METER: shows your phone's real magnetometer reading in µT or mG, with a 5-LED bar, peak and live graph. Magnets and speakers move it. Not a scientific instrument. EVP RECORDER: record with the microphone and play back slowed down. Free: 1 recording a day, plus 1 per rewarded ad. SPIRIT RADAR: a radar animation for atmosphere. Blips are random, a visual effect only. SPIRIT BOX: a radio-sweep game. Words are picked at random from a built-in list; a word drops sooner when your EMF reading jumps. Word history included. Entertainment only: nothing is being detected. SENSORS: live pressure, vibration and sound level from the sensors in your phone. PENDULUM: type a yes/no question; the answer comes from how you tilt the phone. HUNT LOG: saves your EMF sessions (duration, peak, events), the last 100. Free with ads. No ads while a hunt is running. GhostScope Pro (subscription or one-time purchase) adds unlimited EVP recordings, m4a export and sensitivity boost above x1.4, and removes ads. No account. Readings and recordings stay on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ghapps1.wordpress.com/privacy-policy/
Threshold
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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.
Screenshots
Verdict
The clearest difference is ads: Threshold at none against GhostScope's shown. Threshold also leads on update cadence (weekly vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GhostScope sells 4 in-app purchases, starting at $4.99 per 7 days and Threshold sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
GhostScope ships an update every 5 weeks, Threshold weekly. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.
| Parameter | GhostScope | Threshold |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 8 MB | 8 MB |
| Age rating | 4+ | 9+ |
| Developer | Grima Hdez | Brandon Romero |
In-app purchases
GhostScope
- GhostScope Pro Weekly3 Days trial$4.997 Days
- GhostScope Pro Monthly3 Days trial$9.991 Month
- GhostScope Pro Yearly3 Days trial$39.991 Year
- GhostScope Pro Lifetime$49.99
Threshold
- Threshold Pro Lifetime$14.99







