Comparison

Necrophonic vs EMF Detector

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

Head to head
About

Necrophonic

This application facilitates spirit communication and Electronic Voice Phenomenon (EVP) research. It features eight distinct sound banks, each meticulously mastered to enhance specific frequencies and create an environment conducive to paranormal investigation. An optional ninth bank offers unique white noise derived from a renowned EVP recorder.

Highlights
  • 8 mastered sound banks for spirit communication
  • Optional 9th white noise sound bank
  • Echo and Reverb audio effects
  • Mastered audio for enhanced frequencies
  • Phonemes, partial words, and reversed audio
Features
Read full description

Necrophonic is an ITC app used for spirit communication and EVP research. 8 Sounds Banks: The audio has been mastered in a way to bring out various sound properties . Using Pro Tools I was able to enhance high, mid, and low range frequencies. I also applied other filters to create unique sound characteristics to help layer the audio and create an environment suitable for spirit communication. The audio itself is made up of phonemes, partial words, reverse audio, foreign languages, and other parts of speech that can help spirits communicate. Besides some basic phonetic sounds such as na, no, da, do, di, ma, may, etc. there are no real words of phrases contained in the banks. These sounds banks play in a similar way to that of my other app "Spiritus Ghost Box" but instead of 4 sound banks Necrophonic has 8 active sound banks. White Noise Sound Bank: This app also has an optional 9th sound bank called "White noise". This bank can be used alone or with the other 8 giving you a total of 9 sound banks. This audio is taken for the internal sounds of the famous DR60 recorder that is known as the "Holy Grail" of EVP recorders. This is not a White Noise Generator, this is a normal sound bank like the others but this one contains white noise from the DR60. Audio Effects: This app does contain Echo and Reverb audio effects. These have been proven to be the best effects to apply to ITC sessions. The echo can create audio that can be manipulated within the echo itself. Echo can also help in live, real time communication by repeating the audio and allowing you to better hear whats coming through. Reverb can be applied to the audio to create a spacious sound environment that will enhance audio manipulation.

About

EMF Detector

Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.

Highlights
  • EMF monitoring
  • Electromagnetic field detection
  • Radiation level measurement
  • Environmental safety assessment
  • Real-time EMF readings
Features
Read full description

Monitor your surroundings with precision using our EMF Monitoring app, designed exclusively for iOS. This innovative application transforms your iPhone into a powerful EMF detector, enabling you to identify electromagnetic fields in various environments. As you move through different areas, the app continuously measures EMF levels, allowing you to easily pinpoint zones of high and low radiation. Whether you're concerned about safety at home, in the workplace, or in public areas, EMF Monitoring provides the insights you need to assess environmental safety and make informed decisions about your surroundings. This app is using the standard Apple Terms of Use (EULA) https://www.apple.com/legal/ internet-services/itunes/dev/stdeula/

Screenshots

Necrophonic3 screens
EMF Detector3 screens

Verdict

The call

The clearest difference is price: EMF Detector at Free against Necrophonic's $9.99. EMF Detector also leads on rating (4.4 vs 3.8) and update cadence (every 2 weeks vs every 24 months). Necrophonic's advantage is in-app purchases (none vs 3) and review sentiment (48% vs 25%). On ratings volume, ads 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

EMF Detector is free to download; Necrophonic costs $9.99 up front. EMF Detector sells 2 in-app purchases, starting at $4.99 per month. Necrophonic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EMF Detector holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 555 and 340 respectively. Written reviews complicate that: 48% of Necrophonic's written reviews are positive against 25% of EMF Detector's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Necrophonic ships an update every 24 months, EMF Detector every 2 weeks. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard8 real differences · 3 level
Necrophonic versus EMF Detector: the parameters behind the verdict, then further details
ParameterNecrophonicEMF Detector
Price$9.99Free — better
Rating3.8 (555 ratings)4.4 (340 ratings) — better
Positive reviews47.6% of reviews — better25.0% of reviews
Number of ratings555 — better340
Update frequencyEvery 24 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#7 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size98 MB11 MB
Age rating9+4+
DeveloperBitPlague LLC新雨 李

Customer experience

Necrophonic

All ratings538 ratings
Positive68.4%
Neutral4.1%
Negative27.5%
Written reviews391 reviews
Positive47.6%
Neutral5.9%
Negative46.5%

EMF Detector

All ratings319 ratings
Positive83.4%
Neutral4.1%
Negative12.5%
Written reviews16 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Bugs and requests

Necrophonic

Reported bugs

3 issues
  • App crashes or freezes
  • Inconsistent performance across devices
  • Unexpected charges or subscription issues

Requested features

4 requests
  • Add recording/playback functionality
  • Improve audio quality and clarity
  • Provide language options beyond English
  • Add customization options for sound effects

EMF Detector

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Necrophonic

No in-app purchases

2 purchases

EMF Detector

Subscriptions1
  • unlimited features2 variants$4.991 Month
One-time1
  • unlimited features$14.99

Questions

Is Necrophonic free?
Necrophonic costs $9.99, with no in-app purchases.
Is EMF Detector free?
EMF Detector is free to download, with in-app purchases available.
Which has better reviews, Necrophonic or EMF Detector?
EMF Detector is rated higher. Necrophonic averages 3.8 out of 5 from 555 ratings, while EMF Detector averages 4.4 from 340 ratings.
Do Necrophonic or EMF Detector have ads?
Neither Necrophonic nor EMF Detector shows ads.
Which is updated more often, Necrophonic or EMF Detector?
Necrophonic ships an update every 24 months, and EMF Detector every 2 weeks. Most recently, Necrophonic was updated on November 6, 2026 and EMF Detector on November 4, 2026.

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