EMF Detector is a magnetometer-based field scanner for iOS and Android, designed for electricians, home safety inspectors, and paranormal investigators.
The App DNA
What makes this app unique?
The app removes the need for dedicated hardware by repurposing the phone's internal sensor, providing a low-friction entry point for users investigating household wiring or environmental anomalies.
For Electricians, home safety inspectors, and paranormal investigators requiring magnetometer-based field detection.
What does it look like?
Key features
Auto-saves readings with 7-day trend charts and comparative insights.
Baseline-relative anomaly detection with 5-level intensity alerts for ghost-hunting workflows.
Contextualizes readings against ICNIRP public reference levels and household appliance benchmarks.
How much does it cost?
The app operates on an ad-supported model with no current paid-tier gates or IAP.
Velocity
Active developmentUX improvementsperformanceShow more...
The developer is maintaining an active release cadence, averaging approximately 1.3 releases per week over the observed window. Development is currently focused on refining core functionality, specifically addressing hardware-level sensor calibration to ensure more reliable readings. The trend is stable, with consistent updates across both iOS and Android platforms. The latest release demonstrates a clear focus on technical precision rather than cosmetic changes.
Who built it?
Kyu-Hee Jang
8 apps tracked · Utilities
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AudioScope+ Oscilloscope Audio
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Seismograph: Quake DetectorUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for EMF Detector - EMF Meter
How's the Utilities market?
EMF Detector maintains a 4-star rating on iOS with 4 total ratings, while the Android version remains unrated. The rapid 16-day update cadence suggests a focus on sensor calibration to differentiate from static, unmaintained rivals.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for EMF Detector - EMF Meter
Where is it heading?
The EMF utility market is shifting toward data-logging capabilities, and EMF Detector's recent focus on trend charts positions it well against static, unmaintained rivals. Continued investment in sensor calibration will likely solidify its standing with technical users, provided the app clarifies its detection limitations to prevent churn.
- The 16-day update cadence shows active sensor refinement, which improves measurement accuracy and builds trust with technical users.
- The current ad-supported model provides a low barrier to entry, but lacks a clear path to monetization for power users.
The SWOT
- 7-day trend history creates a data-retention loop
- Baseline-relative anomaly detection serves the ghost-hunting segment
- Pro-tier removal of ads for high-intent investigators
Next best moves
Ship an in-app educational overlay explaining sensor limitations because users mistake the lack of RF detection for a bug → reduce negative sentiment
+ 1 more prioritized moveThe counter-intuitive read
Users report: The app's lack of RF detection is a competitive advantage…
Read the full takeSince the last report: The app has pivoted toward active user education to mitigate churn caused by hardware limitations, while the outlook trend has improved due to consistent sensor calibration updates.
Bottom line
EMF Detector's recent calibration updates stabilize the core magnetometer workflow, but the lack of RF detection remains a primary source of user confusion that requires clearer in-app messaging to prevent churn.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Does EMF Detector work for finding Wi-Fi or 5G signals?
Is EMF Detector safe for kids to use?
How does EMF Detector compare to other ghost-hunting apps?
Sources
- [1] App Store, source
Report last updated