Comparison

GhostScope vs Threshold

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GhostScope

Features
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GhostScope turns your iPhone into a real ghost hunting kit, powered by the device's actual sensors. EMF METER Your magnetometer measures magnetic field strength in real time. The K-II style LED bar lights up on every spike. Real data, not random numbers. EVP RECORDER Capture Electronic Voice Phenomena and play them back at 0.5x speed, the classic method investigators use to hear hidden voices. SPIRIT RADAR A live sweep reveals nearby entities, biased toward the real magnetic spikes happening around you. PENDULUM Hold your phone steady and ask yes or no questions. The accelerometer reads the tilt and answers Yes, No or Maybe. HUNT LOG Every investigation is saved automatically: location, duration, peak reading and every anomaly event. Track your recurring hotspots. GhostScope Pro unlocks unlimited saved sessions, advanced sensitivity, audio export, custom pendulum questions, home screen widgets and removes ads. For entertainment purposes only. GhostScope does not claim to detect real paranormal phenomena. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ghapps1.wordpress.com/privacy-policy/

About

Threshold

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Threshold: Spirit Box Lab is a focused paranormal investigation app that generates indexed word outputs from live magnetic-field and device-motion activity. Instead of releasing words through a simple repeating timer, Spirit Box Lab uses calibrated sensor activity, sensitivity-based triggering, cooldown behavior, and deterministic indexed selection from a carefully curated 2,048-entry production vocabulary. Configure a Session, Area, sensitivity level, and spoken-output preference before beginning a run. Generated outputs, timestamps, and available technical Trigger Details are saved for later review. SPIRIT BOX LAB • Generate indexed word outputs from live sensor activity • Choose Low, Medium, or High sensitivity • Enable or disable spoken output • View fused magnetic-field and motion activity • Follow trigger progress and cooldown status • Review recent outputs during an active run • Save completed and interrupted runs automatically • Organize runs by Session and Area TRIGGER DETAILS Review the technical context behind saved outputs, including available information such as: • Accumulator activity • Magnetometer contribution • Device-motion contribution • Cooldown state • Sensor-derived signature • Word Index Trigger Details help preserve the conditions surrounding each generated output for later comparison and interpretation. MAGNETIC FIELD MONITOR Monitor live magnetic-field strength and changes from a calibrated baseline. View: • Current magnetic-field magnitude • X, Y, and Z axis readings • Change from baseline • Peak activity • Responsive activity levels Nearby magnets, speakers, electronics, charging equipment, metal objects, and changes in phone orientation can affect readings. VIBRATION BEACON Use the iPhone’s motion sensors to monitor device movement and surface vibration. Choose a sensitivity level and observe: • Current movement level • Stable, movement, and strong-movement states • Movement event count • A responsive full-screen visual beacon For more stable comparisons, place the phone on a fixed surface and avoid unnecessary handling. SESSIONS AND AREAS Create Sessions for separate investigations and Areas for individual rooms, zones, or locations. Saved Spirit Box runs remain connected to the selected Session and Area so activity can be reviewed within its original investigation context. Runs may also be saved as Unassigned when no Area is available. FREE ACCESS Free access includes: • 15 total minutes of complimentary Spirit Box monitoring • Up to 5 minutes per individual run • Calibration time excluded from complimentary usage • Access to previously saved runs after complimentary time is used • Magnetic Field Monitor • Vibration Beacon SPIRIT BOX LAB PRO Upgrade once for lifetime access to: • Unlimited Spirit Box monitoring • Unlimited saved Spirit Box runs • More Sessions and Areas • Trigger Details Spirit Box Lab Pro is a one-time in-app purchase. No subscription is required. PRIVACY-FOCUSED Threshold: Spirit Box Lab does not require an account. Core investigation data is stored locally on your device, and you control what you review or share. Sensor readings and generated outputs should be interpreted within the full context of the investigation. Designed for iPhone.

Screenshots

GhostScope4 screens
Threshold4 screens

Verdict

The call

The clearest difference is ads: Threshold at none against GhostScope's shown. 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

CostPrice · In-app purchases · Ads · Monetization

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.

Scorecard1 real difference · 5 level
GhostScope versus Threshold: the parameters behind the verdict, then further details
ParameterGhostScopeThreshold
PriceFreeFree
Update frequencyEvery 2 months—
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS17.4 — better17.6
Further details — not scored
Size7 MB4 MB
Age rating4+9+
DeveloperGrima HdezBrandon Romero

In-app purchases

4 purchases

GhostScope

Subscriptions3
  • GhostScope Pro Weekly3 Days trial$4.997 Days
  • GhostScope Pro Monthly3 Days trial$9.991 Month
  • GhostScope Pro Yearly3 Days trial$39.991 Year
One-time1
  • GhostScope Pro Lifetime$49.99
1 purchases

Threshold

One-time1
  • Spirit Box Lab Pro$9.99

Questions

Is GhostScope free?
GhostScope is free to download, with in-app purchases available.
Is Threshold free?
Threshold is free to download, with in-app purchases available.
Do GhostScope or Threshold have ads?
GhostScope shows ads; Threshold does not.

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