Metal Detector - Field Scanner is a utility tool for iPhone that tracks real-time magnetic field strength using the device's built-in magnetometer.
The App DNA
What makes this app unique?
The app removes the friction of accessing raw sensor data for informal, non-professional tasks like locating hidden metal objects.
For iPhone users requiring basic, real-time magnetic field detection for informal, non-professional use.
What does it look like?
Key features
Real-time tracking of magnetic field strength in µT, mG, or G using the device magnetometer.
Configurable sound and haptic feedback triggered when magnetic readings exceed a set threshold.
Visual representation of magnetic data over time, gated behind the Pro subscription.
How much does it cost?
The freemium model gates advanced data visualization and export capabilities behind an optional subscription.
Velocity
Maintenance developmentopaqueShow more...
The app is currently in a maintenance state, having shipped only one release in the last 98 days. There is no evidence of active development, new content, or live operations. The lack of subsequent updates suggests the publisher is not actively iterating on the product at this time.
Who built it?
学友 刘
3 apps tracked · Utilities
Smart Digital Compass
GPSSpeed — SpeedometerUser 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 Metal Detector - Field Scanner
How's the Utilities market?
Metal Detector - Field Scanner occupies the informal utility space, relying on a freemium model to capture casual users. The lack of recent updates (98 days) signals a maintenance-mode posture that risks losing ground to more active competitors.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Metal Detector - Field Scanner
Where is it heading?
The magnetic field utility market is consolidating around apps that provide both measurement and actionable guidance. Metal Detector - Field Scanner remains in a maintenance posture, which risks losing relevance if competitors introduce more intuitive, guided user workflows.
- The maintenance-only release cadence suggests a stable, low-touch product strategy rather than an active growth phase.
- The absence of new features for 98 days increases the risk of churn as rivals with faster update cycles capture user interest.
The SWOT
- Sensor-level processing on-device ensures privacy
- Real-time visual ring gauge provides immediate feedback
- Integration of guided tutorials for common use cases
- Expansion of Pro-tier export features to include CSV
Next best moves
Ship guided onboarding tutorials because the current lack of user guidance limits utility for casual users → increase retention
The counter-intuitive read
The lack of professional-grade calibration is a feature, not a bug…
Read the full takeBottom line
Metal Detector - Field Scanner maintains a stable utility niche, but the lack of feature expansion over the last 98 days leaves the product vulnerable to more active competitors. Prioritizing a clear, guided onboarding flow would better serve the casual user base and improve retention.
Unlock 2 critical frictions, 2 market threats and the analyst’s take.
Access the full report for freeFAQ
Is Metal Detector - Field Scanner accurate enough for professional construction work?
Does Metal Detector - Field Scanner require an account to use?
What is the difference between the free and Pro versions?
Sources
- [1] App Store, source
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