Necrometer vs EMF Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Necrometer
This app is designed for ghost hunters and paranormal investigators. It detects magnetic energy fluctuations and facilitates spirit communication through text and speech modes using AI-powered systems and audio effects. It aims to provide insights and messages from the other side.
- Magnetic energy detection meter
- Text-based spirit communication
- AI-powered speech generation
- Customizable voice and audio effects
- Access to over 60,000 words/phrases
- Custom word list functionality
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Necrometer Designed for ghost hunters and paranormal enthusiasts. This multifunctional app can be used to detect and communicate with spirits. We have taken known spirit communication techniques and theories and have implemented them here in new and innovative ways. -Meter that detects and measures magnetic energy -Text and Speech modes -2 Built in Text To Speech A.I. systems -3 Voices -Pitch control with randomization option -Reverb and Echo audio effects The Meter: It is believed that spirits can affect magnetic energy fields. Using your phone’s Magnetometer sensor this app can detect levels of magnetic interference in the environment. These fluctuations of energy fields have a direct influence on the communication. -Meter noise (optional) reacts to fluctuations in the meter Text Mode: Simply slide the power button over to "Text" and begin asking your questions. Walking around a location you can detect energy anomalies and various levels of magnetic interference. Words and phrases will begin coming through the app. The relevance of the communication is determined by multiple factors including spirit connection and strength. Those who have a stronger connection to the otherside may experience more direct and relevant communication. Similar to the famous Ovilus ITC device, the Necrometer app is designed to facilitate spirit communication by measuring fluctuations of energy in the environment. The idea that spirits can manipulate electronic devices for purposes of communication is well documented. Based on the theory of random selection and known evidence of energy manipulation, the Necrometer app utilizes these known methods of spirit communication and paranormal phenomena. -Access to over 60k words/phrases -Custom word list, Add your own words and phrases Speech Mode: Sliding the power button over to "Speech" will turn on this unique mode of the app. Created to facilitate ghost box/ EVP like communication, the speech mode of the app provides audible spirit communication like no other. Generating speech sounds from within the app, there are no sound banks, word lists, radio, or any other pre-recorded audio. Spirits can use and manipulate these random speech sounds to form coherent messages, an idea rooted in ITC/EVP theory. Some of these messages may be heard in real time similar to a ghost box, other EVP-like communication can be heard on playback of the recorded audio. Again, the strength and level of communication being recieved depends on various factors. Coherent messages can only be obtained through communication with spirit, otherwise only unclear speech sounds will be heard. -Rate slider to increase/decrease rate of audio coming through The Necrometer app is an advanced all-in-one app that can be used to detect energy anomalies in the area, produce words and phrases that can provide relevant clues/information, and provide audible ITC/EVP communication from spirit.
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.
- EMF monitoring
- Electromagnetic field detection
- Radiation level measurement
- Environmental safety assessment
- Real-time EMF readings
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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
Verdict
The clearest difference is price: EMF Detector at Free against Necrometer's $9.99. EMF Detector also leads on rating (4.3 vs 2.7) and update cadence (every 2 weeks vs every 9 months). Necrometer's advantage is in-app purchases (none vs 3) and chart position (#11 vs unranked). On review sentiment, 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
EMF Detector is free to download; Necrometer costs $9.99 up front. EMF Detector sells 2 in-app purchases, starting at $4.99 per month. Necrometer asks for nothing beyond the download.
EMF Detector holds the better App Store score, 4.3 against 2.7. Both are backed by a comparable volume of ratings — 271 and 319 respectively. Written reviews complicate that: 31% of Necrometer'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.
Necrometer ships an update every 9 months, EMF Detector every 2 weeks. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.
| Parameter | Necrometer | EMF Detector |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 2.7 (271 ratings) | 4.3 (319 ratings) — better |
| Positive reviews | 30.6% of reviews — better | 25.0% of reviews |
| Number of ratings | 271 | 319 — better |
| Update frequency | Every 9 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #11 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 174 MB | 11 MB |
| Age rating | 12+ | 4+ |
| Developer | BitPlague LLC | 新雨 李 |
Customer experience
Necrometer
EMF Detector
Bugs and requests
Necrometer
Reported bugs
2 issues- Audio not working on certain devices
- Random/irrelevant responses
Requested features
3 requests- Ability to save/review past session logs
- Multi-language support
- Custom word list functionality
EMF Detector
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Necrometer
No in-app purchases
EMF Detector
- unlimited features2 variants$4.991 Month
- unlimited features$14.99
Questions
Is Necrometer free?
Is EMF Detector free?
Which has better reviews, Necrometer or EMF Detector?
Do Necrometer or EMF Detector have ads?
Which is updated more often, Necrometer or EMF Detector?
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