Comparison

Ghost Science M3 vs Necro Dice

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

Necro Dice

This app offers a modern take on ancient divination practices using dice. Users can roll lettered dice to receive messages from spirits, with the app interpreting the results into words.

Highlights
  • Simulated lettered dice rolling
  • Spirit communication tool
  • Ancient divination practice
  • Word interpretation algorithm
  • Word log history
Features
Read full description

In the modern age, paranormal investigators use many tools to communicate with spirits. Ouija Boards, Spirit Boxes, radios and apps are just a few of the many tools they use but cultures have been using tools to communicate with spirits for ages. Cleromancy, the practice of contacting divine truth via random castings of dice (or bones) stretches back before recorded history. Astragalomancy, is a form of divination that uses dice marked with letters. In fact, many ancient cultures have various forms of dice divination. Necro Dice is a modern version of this ancient practice. This app means to combine the ancient and modern forms of communication in a completely new and unique way. Users seeking answers or messages can roll the dice with a simple tap of the screen. Once the user’s intention has been cast through the rolling of the dice, it is up to the spirits to communicate by influencing the randomization of letters to form words. This phenomenon of spirit communication through the manipulation of electronic devices has been well documented for several decades. Necro Dice functions by generating a handful of dice with random letters assigned to each of the six faces of each dice. These dice are then simulated with an advanced physics engine that handles dice to table and dice to dice collisions. When the physics simulation completes and the dice settle the result is a jumble of letters shown on the top face of the dice. Normally when using dice, the user is then required to inspect the dice to try and find words in this jumble of letters. This app uses a proprietary algorithm to inspect the top faces of the dice and try to match words and names to a dictionary. A word is chosen from the jumble of letters based on many factors including distance, length, location and relevance. Once a word is detected in the dice, the app will highlight the individual letters on the dice and display the word on the screen. A list of words rolled since the start of the app can be accessed in the word log by pressing the button at the lower left of the screen. Rolling dice isn’t just for games, do the spirits have a message for you?

Screenshots

Ghost Science M34 screens
Necro Dice4 screens

Verdict

The call

The clearest difference is review sentiment: Ghost Science M3 at 74% against Necro Dice's 10%. Ghost Science M3 also leads on rating (4.6 vs 2.8) and ratings volume (2.7K vs 21). Necro Dice's advantage is device support (3 vs 1) and price ($9.99 vs $10.99). On update cadence, ads, in-app purchases and monetization model 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

Ghost Science M3 costs $10.99 and Necro Dice $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ghost Science M3 holds the better App Store score, 4.6 against 2.8. That said, the two scores are not equally well evidenced: Ghost Science M3 has 2.7K ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 74% of Ghost Science M3's written reviews are positive against 10% of Necro Dice's.

UpkeepUpdate frequency

Ghost Science M3 ships an update every 5 weeks, Necro Dice every 6 weeks. Both last shipped on October 25, 2026.

Scorecard7 real differences · 4 level
Ghost Science M3 versus Necro Dice: the parameters behind the verdict, then further details
ParameterGhost Science M3Necro Dice
Price$10.99$9.99 — better
Rating4.6 (2.7K ratings) — better2.8 (21 ratings)
Positive reviews74.4% of reviews — better10.3% of reviews
Number of ratings2.7K — better21
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#2 — better—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.011.0 — better
Further details — not scored
Size331 MB123 MB
Age rating9+12+
DeveloperMichael WeberBitPlague LLC

Customer experience

Ghost Science M3

All ratings2,678 ratings
Positive90.7%
Neutral4.1%
Negative5.3%
Written reviews168 reviews
Positive74.4%
Neutral7.1%
Negative18.5%

Necro Dice

All ratings21 ratings
Positive33.3%
Neutral14.3%
Negative52.4%
Written reviews29 reviews
Positive10.3%
Neutral10.3%
Negative79.3%

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

Necro Dice

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Ghost Science M3

No in-app purchases

None

Necro Dice

No in-app purchases

Questions

Is Ghost Science M3 free?
Ghost Science M3 costs $10.99, with no in-app purchases.
Is Necro Dice free?
Necro Dice costs $9.99, with no in-app purchases.
Which has better reviews, Ghost Science M3 or Necro Dice?
Ghost Science M3 is rated higher. Ghost Science M3 averages 4.6 out of 5 from 2.7K ratings, while Necro Dice averages 2.8 from 21 ratings.
Do Ghost Science M3 or Necro Dice have ads?
Neither Ghost Science M3 nor Necro Dice shows ads.
Which is updated more often, Ghost Science M3 or Necro Dice?
Ghost Science M3 ships an update every 5 weeks, and Necro Dice every 6 weeks. Most recently, Ghost Science M3 was updated on October 25, 2026 and Necro Dice on October 25, 2026.

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