Signal Watcher
Environmental Anomaly Scanner
Only for iPhone
$4.99
iPhone
Real-time environmental anomaly detection. Audio, motion, magnetic field, and hardware RNG — all analyzed locally, nothing transmitted. For researchers and the curious.
Watcher is a precision environmental anomaly detector that runs entirely on your device.
Using your iPhone's microphone, motion sensors, magnetometer, and hardware random number generator, Watcher continuously monitors for statistically significant deviations across multiple independent channels — then correlates them into a single anomaly score in real time.
WHAT IT MONITORS
· Audio — ambient RMS level, spectral centroid, sub-100Hz infrasound energy, dominant low-frequency Hz
· Motion — jerk magnitude, micro-tremor index, somatic pattern detection
· Magnetic Field — deviation from a locally-learned baseline, with automatic compensation for static field sources
· Hardware RNG — chi-squared, runs test, and monobit frequency analysis on live entropy samples
HOW IT WORKS
Watcher builds a location fingerprint of your environment over time. Once calibrated, it scores incoming sensor data against that baseline — not against a generic threshold. What's anomalous in a quiet room may be normal in a subway station. The app learns the difference.
When multiple independent channels spike simultaneously, Watcher flags a correlated anomaly — the kind that can't be explained by a single known source.
PRIVACY
Everything stays on your device. No network connections. No analytics. No third-party SDKs. Raw sensor data is processed and discarded in real time — only derived scalar values are retained locally.
WHO IT'S FOR
Environmental researchers, field investigators, and anyone who wants to know when something in their surroundings has measurably changed.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Jayron Martinez, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jayron Martinez
- Size
- 1.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jay Martinez
