RF Signal Detector, Anti Spy
Hidden Camera & Tracker Finder
Only for iPhone
Free · In‑App Purchases
iPhone
RF Signal Detector, Anti Spy turns your iPhone into a pocket counter-surveillance kit. Whether you are checking into a hotel, an apartment rental, a changing room, an office, or your own home, it helps you sweep the space around you for hidden cameras, GPS trackers, listening bugs, and other devices that may be watching or listening.
The app brings your iPhone sensors together into one clean instrument console. Run a full sweep of every sensor at once, or open a single detector, watch the live radar and signal meter, and let real-time sound and vibration feedback guide you toward the source of a signal, Geiger-counter style.
Main features
Magnetic and EMF detector: uses the built-in magnetometer to reveal magnetic-field anomalies that give away wired electronics, hidden microphones, magnets, and metal. Includes a live oscilloscope graph, one-tap baseline calibration, and peak tracking so you can compare readings as you move.
Wi-Fi network scanner: maps every device connected to your local network and flags the ones that behave like a hidden camera or an unknown watcher, so you can spot gear that does not belong.
Bluetooth and tracker finder: scans for nearby Bluetooth devices and highlights possible trackers such as AirTag, Find My, and Tile tags. A proximity hunt mode uses live signal strength to help you walk right up to a hidden tag.
Hidden camera finder: scan a room with the lens and infrared finder to catch the tell-tale reflection or IR glint of a concealed camera lens, even in the dark.
Sweep all: runs the magnetic, Wi-Fi, and Bluetooth detectors together and reports a single combined threat level for a fast room check.
Radar and signal meter: every scan is plotted on an animated radar with a clear signal gauge, backed by adjustable sound and haptic feedback you can tune in settings.
Scan history: your previous sweeps and their results are saved on device so you can review them any time.
RF Signal Detector is a privacy assistance tool. It runs entirely on your device and does not collect or share your personal data. Detection depends on your iPhone hardware and the surrounding environment, so results are indicative and cannot guarantee that every hidden device will be found.
Privacy Policy - https://msrtech.net/apps/rf-signal-detector/privacy.html
Terms - https://msrtech.net/apps/rf-signal-detector/terms.html
EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Enjoy a smoother experience with this update, including minor bug fixes to address issues you may have encountered and performance improvements that make the app feel faster and more responsive.
The developer, MSR TECH LLP, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MSR TECH LLP
- Size
- 63.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- RF Signal Detector PRO Weekly $6.99
- RF Signal Detector PRO Weekly $4.99
- RF Signal Detector PRO Yearly $39.99
- RF Signal Detector PRO Yearly $24.99
- Copyright
- © 2026 MSR Tech LLP. All rights reserved.