Comparison

K vs Spirit Box & Ghost Detector

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

Head to head
About

K

This app simulates a paranormal investigation tool, offering real-time EMF monitoring with a classic multi-level LED display. It's designed for ghost hunting sessions, providing instant activity indicators and responsive environmental monitoring.

Highlights
  • Real-time EMF activity monitoring
  • Simulated K-II EMF meter design
  • 5-level LED indicator display
  • High sensitivity detection
  • Designed for paranormal sessions
Features
Read full description

K-II EMF Meter is a mobile app inspired by the legendary K-II electromagnetic field detector commonly used in paranormal-style investigations. Designed for paranormal sessions, it provides a real-time EMF monitoring experience with a simple, responsive interface. The app recreates the familiar LED meter display with instant activity indicators and sensitivity-based EMF detection. Instant EMF Response • Real-time EMF activity monitoring Authentic K-II Experience • Inspired by the legendary K-II EMF meter Wide EMF Detection Range • Monitor magnetic field fluctuations 5-Level LED Indicator • Classic multi-level activity display High Sensitivity Detection • Responsive environmental monitoring Investigation Ready • Designed for paranormal sessions and exploration Ad-Free Experience • No interruptions during use Payments are processed through Apple ID and can be managed in App Store settings. https://ewregu.com/privacy-policy-k2 https://ewregu.com/terms-of-use-k2

About

Spirit Box & Ghost Detector

This app simulates paranormal investigation tools like a radar camera, spirit box, EMF meter, and EVP recorder. It helps you detect and log potential apparitions and communicate with entities. All findings are saved to a case file for later review.

Highlights
  • Radar camera with apparition detection
  • Spirit box with AM radio sweep
  • EMF meter using magnetometer
  • EVP recorder
  • Case file for evidence storage
  • Multi-language support
Read full description

Something is in the room with you. Find it. Spirit Box & Ghost Detector turns your iPhone or iPad into a paranormal field kit — a camera radar that reveals apparitions around you, a spirit box that answers your questions, an EMF meter driven by the real magnetometer, and an EVP tape recorder. Every catch is saved to your own case file. CAMERA SCAN — RADAR AND APPARITIONS • Hold up your phone and turn slowly; the radar shows how close the entity is • Apparitions manifest in the live camera view — the closer you get, the stronger they appear • The moment one shows itself, an evidence photo is captured automatically GHOST BOX SB-33 — SPIRIT BOX • AM radio sweep, 530–1730 kHz, with real static and a voice pushed through a radio filter • Tap a question key, or switch on Listen and ask out loud • Every session has its own entity — a name, a mood and its own way of answering • The entity answers in your language: English, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Korean or Chinese • Silence is an answer too, and the whole session is saved to a log you can share EMF METER EM-33 • Live readings from the built-in magnetometer in microtesla • Needle dial, K-II style LED ladder, history graph, peak hold and reset EVP RECORDER RX-33 • Ghost tapes that unlock as you catch apparitions • Stereo VU meters and tape deck controls CASE FILE • Every apparition is stored with the time and the EMF reading • Share a photo or a Ghost Box session in a tap FREE AND PREMIUM Ghost Detector is free to play: 20 ghost catches a day, 12 Ghost Box replies a day and the standard entities. Premium removes the limits: • Unlimited ghost scans • Unlimited Ghost Box replies • Every entity, including the rarest ones • Evidence photos without a watermark SUBSCRIPTION • Weekly — $3.99 with a 3-day free trial • Yearly — $24.99 Prices are in US dollars and may vary by region. Payment is charged to your Apple Account at confirmation of purchase. A free trial converts into a paid weekly subscription unless it is cancelled at least 24 hours before it ends. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel any time in Settings → Apple Account → Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thirtythreeapps.com/ios-ghost-detector-privacy-policy FOR ENTERTAINMENT PURPOSES ONLY Spirit Box & Ghost Detector is a simulation made for fun and for a good scare. Ghosts, spirit box replies and radar contacts are generated by the app. The EMF meter shows real magnetometer values, but the app does not detect real paranormal activity. Rated 13+ for horror themes.

Screenshots

K3 screens
Spirit Box & Ghost Detector4 screens

Verdict

The call

The clearest difference is rating: Spirit Box & Ghost Detector at 4.1 against K's 2.1. Spirit Box & Ghost Detector also leads on update cadence (weekly vs every 5 weeks). K's advantage is review sentiment (33% vs 0%) and iOS requirement (15.0 vs 17.0). On price, ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. K sells 4 in-app purchases, starting at $4.99 per 7 days and Spirit Box & Ghost Detector sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spirit Box & Ghost Detector holds the better App Store score, 4.1 against 2.1. Both are backed by a comparable volume of ratings — 11 and 9 respectively. Written reviews complicate that: 33% of K's written reviews are positive against 0% of Spirit Box & Ghost Detector's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

K ships an update every 5 weeks, Spirit Box & Ghost Detector weekly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
K versus Spirit Box & Ghost Detector: the parameters behind the verdict, then further details
ParameterKSpirit Box & Ghost Detector
PriceFreeFree
Rating2.1 (11 ratings)4.1 (9 ratings) — better
Positive reviews33.3% of reviews — better0.0% of reviews
Number of ratings11 — better9
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size16 MB84 MB
Age rating4+12+
DeveloperEwreguThirty Three Apps

Customer experience

K

All ratings11 ratings
Positive27.3%
Neutral0.0%
Negative72.7%
Written reviews6 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Spirit Box & Ghost Detector

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

K

Subscriptions2
  • Weekly Plan$4.997 Days
  • Monthly Plan$9.991 Month
One-time2
  • Special Offer Plan$14.99
  • Lifetime Plan$29.99
2 purchases

Spirit Box & Ghost Detector

Subscriptions2
  • Premium Weekly3 Days trial$3.997 Days
  • Premium Yearly$24.991 Year

Questions

Is K free?
K is free to download, with in-app purchases available.
Is Spirit Box & Ghost Detector free?
Spirit Box & Ghost Detector is free to download, with in-app purchases available.
Which has better reviews, K or Spirit Box & Ghost Detector?
Spirit Box & Ghost Detector is rated higher. K averages 2.1 out of 5 from 11 ratings, while Spirit Box & Ghost Detector averages 4.1 from 9 ratings.
Do K or Spirit Box & Ghost Detector have ads?
Neither K nor Spirit Box & Ghost Detector shows ads.
Which is updated more often, K or Spirit Box & Ghost Detector?
K ships an update every 5 weeks, and Spirit Box & Ghost Detector weekly. Most recently, K was updated on October 24, 2026 and Spirit Box & Ghost Detector on October 31, 2026.

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