Ghost Science M3 vs Ghost SLS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ghost Science M3
This advanced paranormal investigation toolkit utilizes cutting-edge technology to detect and visualize potential supernatural activity. Features include infrared laser grid imaging, AI-driven figure detection, real-time audio analysis for spirit communication, and environmental monitoring.
- Infrared laser grid imaging with AI figure detection
- Spirit Box with real-time audio analysis
- LiDAR-enabled spatial mapping
- Environmental monitoring for paranormal phenomena
- EMF detection and visualization
- EVP and ITC communication tools
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Open the door to the paranormal with GHOST SCIENCE M3™, the pinnacle of ghost hunting technology. Trusted by the world’s leading professional investigators, GHOST SCIENCE M3™ is the culmination of over a decade of research and innovation. GHOST SCIENCE M3™ stands as the most advanced, comprehensive, and powerful paranormal investigation toolkit ever created. Nothing Compares. Vision The Vision instrument employs structured-light lidar-enabled infrared laser grid imaging, AI-driven computer vision, GPU-based image filtering, and advanced hardware management to deliver unparalleled night-vision, image processing, and real-time human-like figure detection. *Lidar is available only on Pro devices. Spirit Box The Spirit Box instrument leverages live streaming radio stations, advanced signal processing, real-time audio analysis, and dynamic frequency scanning to generate a blend of white noise and brief audio fragments. It is hypothesized that spiritual entities can manipulate these audio fragments using their energy, resulting in intelligible communications. Spatial Matrix The Spatial Matrix instrument uses LiDAR depth mapping, real-time mesh reconstruction, and GPU-accelerated analysis to visualize the geometric structure of the surrounding environment. It is theorized that paranormal energies may subtly distort these patterns, allowing investigators to observe potential manifestations within three-dimensional space. *Pro devices only. Music Box The Music Box instrument employs advanced sensor integration, real-time data analysis, and precise environmental monitoring to detect subtle changes in the ambient environment. In the realm of paranormal research, this instrument is utilized to identify the potential presence of paranormal phenomena. PEVP-VOX The Spirit Vox instrument generates a continuous sound bed composed of phonetic fragments, tonal shifts, and raw audio textures through advanced sound synthesis and real-time modulation. It is hypothesized that subtle environmental influences can manipulate these fragments, shaping them into speech-like bursts that may convey meaningful communication. EVP-ITC The EVP-ITC instrument employs full sensor integration to detect subtle environmental fluctuations and presents words based on an advanced, proprietary phonetically-based computational algorithm. Instrumental Trans-Communication (ITC) devices operate on the theory that paranormal entities can communicate by influencing the ITC device’s sensors. EMF The EMF instrument allows for precise detection, measurement, and visualization of ambient electromagnetic field levels across the electromagnetic spectrum in real-time. It is hypothesized that paranormal entities can influence and generate electromagnetic fields, which are detectable by the EMF instrument. Audio-EVP The Audio instrument analyzes intricate and nuanced audio signals to provide insights into the underlying acoustic properties of the environment. It is theorized that spirits or supernatural entities can manipulate acoustic wave data to produce electronic voice phenomena (EVP) not audible during the initial recording session. Frequency-EVP The Frequency instrument analyzes complex frequency signal harmonics to identify subtle variations and anomalies within the underlying acoustic environment. It is suggested that high audio frequencies, near and beyond the limit of human hearing, could be linked to paranormal phenomena. Geoscope The Geoscope instrument leverages gyroscope and accelerometer sensors to detect even the minutest device movements or vibrations. This functionality is predicated on the hypothesis that paranormal entities can induce subtle vibrations, such as footsteps or knocking sounds. Barometer The Barometer instrument employs the device’s advanced barometric sensor to detect extremely subtle variations in ambient pressure. This functionality is based on the hypothesis that paranormal phenomena may induce sudden or unexplained changes in pressure.
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. :)
Screenshots
Verdict
The clearest difference is price: Ghost SLS at Free against Ghost Science M3's $10.99. Ghost SLS also leads on iOS requirement (16.0 vs 18.0). Ghost Science M3's advantage is review sentiment (74% vs 37%) and ads (none vs shown). On rating, ratings volume, update cadence and in-app purchases 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
Ghost SLS is free to download; Ghost Science M3 costs $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ghost Science M3 holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 2.7K and 3.6K respectively. Written reviews point the same way: 74% of Ghost Science M3's written reviews are positive against 37% of Ghost SLS's.
Ghost Science M3 ships an update every 5 weeks, Ghost SLS every 2 months. Both last shipped on October 1, 2026.
| Parameter | Ghost Science M3 | Ghost SLS |
|---|---|---|
| Price | $10.99 | Free — better |
| Rating | 4.6 (2.7K ratings) — better | 4.4 (3.6K ratings) |
| Positive reviews | 73.6% of reviews — better | 36.8% of reviews |
| Number of ratings | 2.7K | 3.6K — better |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Best chart rank | #6 — better | #109 |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 331 MB | 50 MB |
| Age rating | 9+ | 17+ |
| Developer | Michael Weber | OurBigAdventure, LLC |
Customer experience
Ghost Science M3
Ghost SLS
User reviews
Ghost Science M3
From 2.7K App Store ratingsWhat we love
- 👍 Useful paranormal investigation tools
- 🚀 Comprehensive set of features
- 💡 Innovative technology
- 🔒 Accurate sensor readings
Room to improve
- 🐛 Glitches and bugs
- 🔋 Compatibility issues with older devices
- 🤔 Unclear instructions and guidance
- 🤷♀️ Questionable reliability of some features
Ghost SLS
From 3.6K App Store ratingsWhat we love
- 👍 Works well for ghost hunting
- 🔍 Accurately detects anomalies
- 🤖 Realistic ghost detection
Room to improve
- 🐛 Picks up non-ghost objects as anomalies
- 💰 Ads even after paid purchase
- 🤔 Ghosts appear to be dancing/moving unnaturally
Bugs and requests
Ghost Science M3
Reported bugs
4 issues- Lidar feature not working
- EVP recordings not saving
- Frequent app crashes
- Compatibility issues with certain iOS versions
Requested features
4 requests- Add ability to record and playback EVP sessions
- Improve ghost box functionality
- Provide more detailed information on sensor data
- Allow customization of the dashboard
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
In-app purchases
Ghost Science M3
No in-app purchases
Ghost SLS
No in-app purchases
Questions
Is Ghost Science M3 free?
Is Ghost SLS free?
Which has better reviews, Ghost Science M3 or Ghost SLS?
Do Ghost Science M3 or Ghost SLS have ads?
Which is updated more often, Ghost Science M3 or Ghost SLS?
Which is more popular, Ghost Science M3 or Ghost SLS?
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