Comparison

Monstrometer vs NDS Ghost Hunter

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

Head to head
About

Monstrometer

This app helps you identify and understand supernatural beings. It uses biometric scans and questions to assess if someone is a disguised creature like a zombie or vampire, and offers survival tips and videos.

Highlights
  • Biometric finger scan for creature identification
  • Psychometric questions to assess supernatural probability
  • Survival videos for various creatures
  • Tips for dealing with supernatural beings
  • Social game for tricking friends
Features
Read full description

Use The Seth On Survival Monstrometer to scan and interrogate old friends and new acquaintances to determine if they are really supernatural beings in disguise and then learn how to deal with them. You can even scan yourself and link with others who share your supernatural condition. The Monstrometer uses a biometric finger scan and a battery of psychometric questions to determine the probability that your subject could actually be a zombie, vampire, werewolf, leprechaun or other dangerous supernatural creature. Recommended for anyone who has ever wondered, if I ask for her number will she just sink her pretty teeth into my carotid artery and suck out all my blood? And why is my friend acting so weird? The Monstrometer has been updated regularly with new information and results and now you can even watch survival videos with werewolves, zombies and leprechauns right from within the app with even more new videos coming soon. On the SOS website you'll find Monstometer tips to help ensure your survival. (Also some cheats to trick your friends!) Developed by supernatural survivalist Seth Greening, host of web series Seth On Survival and the upcoming Monstrometer Report and the online home of supernatural survival http://www.sethonsurvival.com Knowledge is power. Less power than a functioning particle cannon, true, but still. Don’t be caught unprepared! A fun social game and important survival tool.

About

NDS Ghost Hunter

Transform your device into a paranormal detection tool. This app uses AI vision, device sensors, and patented technology to find, analyze, and document potential supernatural activity. Features include an AI ghost camera, spirit communication instrument, and electromagnetic field reader.

Highlights
  • AI Ghost Camera with YOLO vision
  • Frequency Analysis & Resonance Translator (EVP)
  • Waveform Harmonic Interference Frequency Finder (EMF)
  • Customizable AI detection models
  • Haptic feedback for paranormal intensity
  • Serious Mode for advanced detection
Read full description

Ghost Hunter — AI-Powered Paranormal Detection Turn your iPhone into a professional-grade ghost hunting instrument. Ghost Hunter combines real device sensors with AI vision detection and Boo Labs-patented paranormal technology to find, analyze, and document what lurks in the dark. HUNT! — AI Ghost Camera Point your camera and let the AI do the work. Ghost Hunter's on-device YOLO vision model scans every frame for paranormal entities, drawing detection boxes around anything suspicious. Use your camera live or pick a photo from your gallery. Serious Mode unlocks real-time AI detection with custom downloadable models. F.A.R.T. — Frequency Analysis & Resonance Translator The ghost-patented spirit communication instrument. F.A.R.T. uses your real microphone to capture EVP recordings, then blends them with a frequency sweep spirit box. Detected "transmissions" are spoken aloud in a randomly selected voice — every session sounds different. Patent #0000000013. W.H.I.F.F. — Waveform Harmonic Interference Frequency Finder Your phone's magnetometer becomes a paranormal odor detector. W.H.I.F.F. reads real electromagnetic field data and presents it as ghost smell intensity on a glowing analog gauge. Four odor zones from "Fresh grave dirt" to "Pure ectoplasmic musk." Haptic feedback escalates as the ectoplasmic musk reaches critical levels. Patent #⌭∞⌭-BOO. SETTINGS — Detection & Models Configure AI detection models, toggle Serious Mode (real YOLO class names vs. ghost names), and set Ghost Preferences to tune which object types attract the most paranormal activity. Download additional detection models directly to your device. Ghost Hunter Premium — $1.99/month Unlock Serious Mode with full AI detection, custom models, and advanced detection capabilities. Subscription auto-renews monthly. Cancel anytime in App Store settings. Boo Labs™ — Ghost-Patented Technology All instruments protected under Afterlife Patent Law. Disputes resolved at nearest cemetery, midnight–3 AM. Note: Ghost Hunter is designed for entertainment purposes. Paranormal results cannot be scientifically verified. Always respect private property and local laws during investigations. Privacy Policy: https://ghosthunter.lol/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Monstrometer4 screens
NDS Ghost Hunter4 screens

Verdict

The call

The clearest difference is in-app purchases: Monstrometer at none against NDS Ghost Hunter's 1. Monstrometer also leads on update cadence (every 3 months vs every 9 months) and iOS requirement (9.0 vs 16.4). NDS Ghost Hunter's advantage is review sentiment (100% vs 71%). On price, rating, ratings volume and ads 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

Both are free to download. NDS Ghost Hunter sells 1 in-app purchase, starting at $1.99 per month. Monstrometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Monstrometer against 4.7 for NDS Ghost Hunter. Both are backed by a comparable volume of ratings — 9 and 6 respectively. Written reviews are what separate them: 71% of Monstrometer's written reviews are positive against 100% of NDS Ghost Hunter's.

UpkeepUpdate frequency

Monstrometer ships an update every 3 months, NDS Ghost Hunter every 9 months. The most recent releases landed on October 8, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
Monstrometer versus NDS Ghost Hunter: the parameters behind the verdict, then further details
ParameterMonstrometerNDS Ghost Hunter
PriceFreeFree
Rating4.7 (9 ratings)4.7 (6 ratings)
Positive reviews71.1% of reviews100.0% of reviews — better
Number of ratings9 — better6
Update frequencyEvery 3 months — betterEvery 9 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.4
Further details — not scored
Size51 MB81 MB
Age rating4+12+
DeveloperT3 Digital ProductionsNeher & Co Data Systems LLC

Customer experience

Monstrometer

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews76 reviews
Positive71.1%
Neutral14.5%
Negative14.5%

NDS Ghost Hunter

All ratings6 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Monstrometer

Reported bugs

15 issues
  • Crashes frequently
  • Keeps crashing
  • Crashes every time
  • Force closes
  • Bug that makes the app crash and delete data
Show 10 more
  • Buggy
  • Keeps closing itself
  • Doesn't save stats or monsters
  • Crashes in the middle of the quiz
  • Crashes every 10 seconds
  • Crashes way too many times
  • Can't answer questions due to crashing
  • Keeps crashing on the 5th question
  • Constantly crashing when trying to log in
  • Crashes on me

Requested features

10 requests
  • Update the app on the AppStore
  • Add sound effects
  • Make human a result option
  • Add unicorn and pegasus monsters
  • Show most common answer and past quizzes
Show 5 more
  • List results and near misses
  • Make monster sounds
  • Create more apps
  • Monster database
  • Cool monster pictures for wallpaper

NDS Ghost Hunter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Monstrometer

No in-app purchases

1 purchases

NDS Ghost Hunter

Subscriptions1
  • Serious Mode$1.991 Month

Questions

Is Monstrometer free?
Monstrometer is free to download, with no in-app purchases.
Is NDS Ghost Hunter free?
NDS Ghost Hunter is free to download, with in-app purchases available.
Which has better reviews, Monstrometer or NDS Ghost Hunter?
Monstrometer and NDS Ghost Hunter are both rated 4.7 out of 5 on the App Store, from 9 and 6 ratings respectively.
Do Monstrometer or NDS Ghost Hunter have ads?
Neither Monstrometer nor NDS Ghost Hunter shows ads.
Which is updated more often, Monstrometer or NDS Ghost Hunter?
Monstrometer ships an update every 3 months, and NDS Ghost Hunter every 9 months. Most recently, Monstrometer was updated on October 8, 2026 and NDS Ghost Hunter on September 24, 2026.

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