Ghoul Fluids vs Phantom Trace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ghoul Fluids
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A spooky, glowing liquid light show! Ghoul Fluids is an interactive camera effect that turns people into swirling, spectral energy. Using Jos Stam's stable fluid simulation and image segmentation, the app detects your movement in real-time and pushes digital "dye" around the screen, creating a mesmerizing, ghostly trail that follows you. Perfect for: Halloween Displays: Connect your iPad to a TV or projector to create a haunted mirror that reacts to Trick-or-Treaters (they won't care though). Parties: Set it up in a corner and watch guests play with their digital silhouettes. Visual Art: Create trippy, responsive visuals just by waving your hands. Features: Real-Time Simulation: Smooth, shader implemented fluid dynamics that react instantly to your motion. Camera-Screen Mode: See the real world with the simulation to tune your setup perfectly. Privacy First: Everything runs locally on your device. No video is ever recorded or sent to the cloud.
Phantom Trace
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Phantom Trace turns your phone into a complete paranormal investigation kit—built for investigators, ghost-hunting teams, and the endlessly curious. Whether you're sweeping an abandoned building, running an overnight at a known haunt, or chasing a story no one else will touch, Phantom Trace helps you capture what happens, keep it organized, and make sense of it afterward. LIVE SENSOR MONITORING Read your device's environmental sensors in real time—electromagnetic field, motion, audio level, barometric pressure, and compass heading—with clean readouts and live min/avg/max tracking. Tag anything unusual the moment it happens. CAPTURE EVIDENCE Document photos, video, and ambient audio with a purpose-built capture overlay, so every piece of evidence stays tied to the case and the moment it was recorded. BUILD A CASE Create detailed investigations: name the location, set the type and priority, schedule sessions, assign your equipment kit, and run solo or with a team. Every reading, photo, and note lands on one case timeline and evidence board. AI-POWERED REVIEW When the session ends, let the built-in analysis surface anomaly scores, patterns, and notable findings across your readings—so you spend less time scrubbing data and more time investigating. MAP THE UNKNOWN Explore an interactive map of haunted locations, sightings, and regional intel, and pin your own GPS-tagged investigation sites. REVIEW THE FULL TIMELINE Trace every event from session start to final evidence review, filter by sensors, evidence, or AI findings, and revisit any case anytime. Phantom Trace is a tool for documenting and analyzing your own investigations. Sensor readings reflect your device's hardware and are intended for investigative and entertainment purposes. Detect. Investigate. Uncover. SUBSCRIPTIONS Phantom Trace Pro is an auto-renewable subscription: $4.99 per month or $49.99 per year. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Spectral Token packs are one-time purchases: 5 for $1.99, 15 for $4.99, 30 for $8.99, 50 for $15.99, 100 for $29.99. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://westmichiganmysterymachine.com/privacy SUBSCRIPTION Field Investigator Pro is an auto-renewable subscription. Monthly $4.99 or Annual $49.99. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings > your name > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://westmichiganmysterymachine.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Ghoul Fluids at none against Phantom Trace's 7. Phantom Trace's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support 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. Phantom Trace sells 7 in-app purchases, starting at $4.99 per month. Ghoul Fluids asks for nothing beyond the download.
| Parameter | Ghoul Fluids | Phantom Trace |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 34 MB | 50 MB |
| Age rating | 4+ | 9+ |
| Developer | Ryan Compton | Jonathon Jacobs |
In-app purchases
Ghoul Fluids
No in-app purchases
Phantom Trace
- Phantom Trace Pro Monthly$4.991 Month
- Phantom Trace Pro Annual$49.991 Year
- 5 Spectral Tokens$1.99
- 15 Spectral Tokens$4.99
- 30 Spectral Tokens$8.99
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- 50 Spectral Tokens$15.99
- 100 Spectral Tokens$29.99
Questions
Is Ghoul Fluids free?
Is Phantom Trace free?
Do Ghoul Fluids or Phantom Trace have ads?
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