Ghost SLS vs SpiritTrace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ghost SLS
This app emulates an SLS camera to detect human figures using your device's camera. It includes filters to help distinguish real detections from false positives caused by lighting. Users can capture and share photos of their findings and connect with others in a community chat.
- SLS camera emulation
- Human figure detection
- Camera filters for false positives
- Photo capture and sharing
- Community group chat
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For our Ghost Hunter friends this tool will allow you to use your Apple device to scan for human figures. Ghost SLS works as an SLS Emulator to so you can get results without buying an expensive camera. The camera filters allow you to determine if the figure detected could be due to the lighting conditions of the area so you can spot false positives. Because this is not a true SLS camera your results in low light may be less reliable. Because of this it is recommended that you turn on your camera's torch light if you are scanning in dark areas. You can also snap photos of what you catch to share with your friends or other investigators. Join our group chat to discuss ghostly things with other users. If things get a little spooky we recommend turning on some lights and taking a break from the app for a while. :)
SpiritTrace
This app uses your iPhone's magnetometer to detect and display magnetic field changes in real-time. Explore different visual outputs, capture evidence clips, and enhance your paranormal investigations with optional audio and haptic feedback.
- Real-time magnetic field detection
- Four sensor-driven display modes
- 15-second evidence clip export
- Geiger-style audio feedback
- Haptic feedback intensification
- Built for paranormal experiments
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Measure real magnetic-field changes with SpiritTrace, a paranormal EMF instrument powered by your iPhone’s built-in magnetometer. REAL SENSOR. NO SCRIPTED SPIKES. The meter reacts to genuine magnetic-field readings from the same sensor used by your phone’s compass. Bring it near speakers, wiring, motors, magnets, metal, and electronics to see the field respond in real time. FOUR SENSOR-DRIVEN DISPLAYS Switch between Analog, Digital, 5-Bar, and Dual displays. Every face uses the same live sensor data. CAPTURE THE MOMENT Export the previous 15 seconds as a shareable evidence clip with readings, peak level, graph, and timestamp. FEEL EVERY CHANGE Optional Geiger-style audio and haptic feedback intensify with the field, so you can investigate without watching continuously. BUILT FOR PARANORMAL EXPERIMENTS Use SpiritTrace for ghost-hunting atmosphere, field experiments, and exploring how everyday objects affect the magnetometer. IMPORTANT SpiritTrace measures magnetic-field strength. It cannot verify paranormal activity or identify hazardous electromagnetic radiation. It does not replace professional safety equipment. Paranormal interpretation is for entertainment. SUBSCRIPTION The complete app requires an active subscription or introductory trial. Eligible new yearly subscribers receive three days free. The monthly plan has no trial. Your localized price and terms appear before purchase. Subscriptions renew automatically unless canceled at least 24 hours before renewal. Manage or cancel in your Apple Account settings. Terms of Use: https://617sw.com/emf/terms Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://617sw.com/emf/privacy Support: https://617sw.com/emf/support
Screenshots
Verdict
The clearest difference is rating: SpiritTrace at 5.0 against Ghost SLS's 4.4. SpiritTrace also leads on ads (none vs shown). Ghost SLS's advantage is in-app purchases (none vs 2) and ratings volume (3.6K vs 1). On price, 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. SpiritTrace sells 2 in-app purchases, starting at $3.99 per month. Ghost SLS asks for nothing beyond the download.
SpiritTrace holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Ghost SLS has 3.6K ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Ghost SLS | SpiritTrace |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (3.6K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 36.8% of reviews | — |
| Number of ratings | 3.6K — better | 1 |
| Update frequency | Every 2 months | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Subscription |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 16 MB |
| Age rating | 17+ | 4+ |
| Developer | OurBigAdventure, LLC | 617SW, LLC |
Customer experience
Ghost SLS
SpiritTrace
Bugs and requests
Ghost SLS
Reported bugs
3 issues- Camera always faces forward, can't reverse
- Laggy and slow performance
- Anomalies disappear when tilting the camera
Requested features
3 requests- Ability to save/retrieve photos
- Improved accuracy in ghost detection
- Option to disable ads in paid version
SpiritTrace
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ghost SLS
No in-app purchases
SpiritTrace
- SpiritTrace EMF Pro Monthly$3.991 Month
- SpiritTrace EMF Pro Yearly3 Days trial$19.991 Year
Questions
Is Ghost SLS free?
Is SpiritTrace free?
Which has better reviews, Ghost SLS or SpiritTrace?
Do Ghost SLS or SpiritTrace have ads?
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