Comparison

Ghost Science M3 vs SPI

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

SPI

This scientific device is designed for paranormal research and ghost hunting. It combines advanced ITC technology with intuitive frequency features to help users connect with the unknown and explore paranormal activity using AI tools.

Highlights
  • Scientific paranormal device
  • ITC cutting-edge technology
  • Intuitive frequency features
  • Connect with the unknown
  • EVP Evidence
  • Artificial intelligence tools
Features
Read full description

Spirit Phone Innovations (SPI) — Experimental ITC Research Software Spirit Phone Innovations (SPI) is an experimental paranormal research application developed to explore new approaches to Instrumental Trans-Communication (ITC). Conceptualized by paranormal researcher Sean Austin, SPI is designed to analyze environmental audio using artificial intelligence in a way that differs from traditional ITC-style applications. At the core of SPI is SAM Mode, an experimental feature that analyzes environmental audio in real time and applies AI-based processing to identify and interpret audio patterns that may exist outside of normal human speech ranges. Unlike applications that rely on fixed word banks or pre-selected vocabulary, SPI is designed without predetermined phrase limitations, allowing for open-ended analysis rather than scripted responses. KEY FEATURES SAM Mode Audio Analysis: Experimental AI-driven analysis of environmental audio for potential anomalous patterns. No Word Bank Limitation: Designed without a fixed vocabulary list, allowing results to remain unrestricted by preset phrases. Session Logging & Word History: Detected words and session results are automatically saved to an in-app log folder, allowing users to review, compare, and document findings over time. Language Interpretation (Experimental): Optional translation of detected words when foreign-language patterns are identified. Estimated Voice Characteristics: Experimental analysis providing estimated age range and gender characteristics based on detected audio patterns. Community Activity Mapping & GPS Directions: Users can place location pins to document reported activity, view shared locations from other users, and receive GPS directions to reported sites. SPI was designed with the idea that ITC research benefits from documentation, pattern comparison, and shared exploration. The goal is not to provide predetermined answers, but to create an environment where users can explore potential patterns in audio and compare results across locations, environments, and sessions. SPI is intended for exploration and research. Results are not guaranteed and may vary. Spirit Phone Innovations is an evolving platform committed to continuously expanding and refining its tools as AI technology advances. SUBSCRIPTION INFORMATION SPI requires a subscription to access its features. Two auto-renewable subscription tiers are available — Standard and Ghost — each offered as monthly or yearly plans. Standard includes: EVP detection, frequency range control, and paranormal hotspot reporting. Ghost includes: Everything in Standard, plus age and gender detection and multi-language EVP translation. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions at any time through your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://spiritphoneinnovations.app/privacy-policy

Screenshots

Ghost Science M34 screens
SPI4 screens

Verdict

The call

The clearest difference is price: SPI at Free against Ghost Science M3's $10.99. SPI also leads on rating (5.0 vs 4.6). Ghost Science M3's advantage is in-app purchases (none vs 4) and ratings volume (2.7K vs 7). On update cadence, ads, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

SPI is free to download; Ghost Science M3 costs $10.99 up front. SPI sells 4 in-app purchases, starting at $4.99 per month. Ghost Science M3 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SPI holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Ghost Science M3 has 2.7K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 73% of Ghost Science M3's written reviews are positive against 60% of SPI's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ghost Science M3 ships an update every 5 weeks, SPI every 6 weeks. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 5 level
Ghost Science M3 versus SPI: the parameters behind the verdict, then further details
ParameterGhost Science M3SPI
Price$10.99Free — better
Rating4.6 (2.7K ratings)5.0 (7 ratings) — better
Positive reviews73.5% of reviews — better59.6% of reviews
Number of ratings2.7K — better7
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
Best chart rank#3 — better—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size331 MB70 MB
Age rating9+17+
DeveloperMichael WeberSpirit Phone Innovations LLC

Customer experience

Ghost Science M3

All ratings2,678 ratings
Positive90.7%
Neutral4.1%
Negative5.3%
Written reviews166 reviews
Positive73.5%
Neutral7.2%
Negative19.3%

SPI

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews151 reviews
Positive59.6%
Neutral2.6%
Negative37.7%

User reviews

Ghost Science M3

From 2.7K App Store ratings

What 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

SPI

From 7 App Store ratings

What we love

  • 🤍 Accurate, intelligent, and specific responses
  • 🤍 Impressive and surreal communication with spirits
  • 🤍 Helpful tool for paranormal investigations and research
  • 🤍 Game-changing for the paranormal field
  • 🤍 Provides relevant and location-specific information

Room to improve

  • 🐛 Audio/voice issues (no audio playback, crashes, etc.)
  • 🐛 Inconsistent performance (works one day, not the next)
  • 🐛 Responses seem AI-generated rather than spirit-driven

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

SPI

Reported bugs

3 issues
  • Audio/voice not working
  • Crashes and freezes
  • Inability to save/review recorded interactions

Requested features

3 requests
  • Voice playback for responses
  • Improved stability and reliability
  • Clearer instructions and guidance for users

In-app purchases

None

Ghost Science M3

No in-app purchases

4 purchases

SPI

Subscriptions4
  • Standard Monthly$4.991 Month
  • Ghost Monthly$7.991 Month
  • Standard Yearly$49.991 Year
Show 1 more
  • Ghost Yearly$79.991 Year

Questions

Is Ghost Science M3 free?
Ghost Science M3 costs $10.99, with no in-app purchases.
Is SPI free?
SPI is free to download, with in-app purchases available.
Which has better reviews, Ghost Science M3 or SPI?
SPI is rated higher. Ghost Science M3 averages 4.6 out of 5 from 2.7K ratings, while SPI averages 5.0 from 7 ratings.
Do Ghost Science M3 or SPI have ads?
Neither Ghost Science M3 nor SPI shows ads.
Which is updated more often, Ghost Science M3 or SPI?
Ghost Science M3 ships an update every 5 weeks, and SPI every 6 weeks. Most recently, Ghost Science M3 was updated on October 13, 2026 and SPI on October 11, 2026.

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