EMF Detector (Scanner)
By jongmin lee
EMF Detector (Scanner) is a utility app for iPhone that visualizes electromagnetic field activity using the device's built-in magnetometer.
The App DNA
What makes this app unique?
Users open EMF Detector (Scanner) to inspect household electronics or track magnetic changes, but the current sensor drift forces them to seek more reliable diagnostic tools.
For Users interested in monitoring household electronics or exploring environmental magnetic activity for informational purposes.
What does it look like?
Key features
Visualizes electromagnetic field activity using the device magnetometer with responsive updates.
Inspects specific frequency components of detected signal changes, gated behind premium-tier upgrades.
Logs previous EMF readings for review and comparison to encourage repeat usage.
How much does it cost?
Freemium model utilizing feature-gating to upsell advanced diagnostic and export tools.
Velocity
Dormant developmentopaqueShow more...
With only one release in the observed window and 211 days since the last update, the app is currently in a zombie state. Development has ceased, and there have been no feature additions or maintenance patches for over seven months. The lack of activity suggests the project is no longer being actively supported by the developer.
Who built it?
jongmin lee
6 apps tracked · Utilities
MyLibrary - Book Manager
Sound & Vibration Meters
NFC-RFID Reader
Network Scanner Pro
SEEDUser Sentiment
What do users think recently?
Review voice lately leans upset.
How are ratings & reviews evolving?
What users say, by theme
- Sensor calibration fails to maintain accuracy when the device angle changes during magnetic field measurements
1 of 1 recent reviews analyzed · limited sample
Read the full review analysisCompetition
Competitive landscape for EMF Detector (Scanner)
How's the Utilities market?
EMF Detector (Scanner) occupies a niche utility space, currently holding a 1★ rating from a limited review sample. The lack of updates since March 2026 signals a maintenance-mode posture that leaves it vulnerable to more active competitors.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for EMF Detector (Scanner)
Where is it heading?
Users report: The diagnostic utility market is consolidating around apps that provide reliable, calibrated sensor data. EMF Detector (Scanner) remains exposed due to its stagnant release cadence and unresolved accuracy issues, which will likely lead to further rating erosion in the coming quarters.
- The seven-month release gap indicates the developer has shifted focus, leaving the critical sensor-calibration bug unaddressed for the foreseeable future.
- Persistent sensor drift during device movement erodes the app's core value proposition, leading to negative sentiment and high churn risk.
The SWOT
- Real-time waveform and graph views provide immediate visual feedback
- Integrating auto-calibration routines could resolve the primary user complaint
Next best moves
Rebuild sensor calibration logic because current readings fluctuate incorrectly during device tilt → stabilize 1★ rating floor
The counter-intuitive read
The app's failure is not a lack of features…
Read the full takeBottom line
Fixing the sensor calibration logic is the only path to stabilizing the user base, as the current inconsistency makes the core utility unreliable. If the developer cannot resolve the hardware-sensor drift, the app will continue to lose ground to more stable, actively maintained alternatives.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is EMF Detector (Scanner) accurate for professional use?
Does EMF Detector (Scanner) work without internet?
Are there any hidden costs in the app?
Sources
- [1] App Store
Report last updated