Hidden Camera Detector

Hidden Camera Detector helps you organize a careful room check with guided lens inspection, approximate magnetic readings and nearby Bluetooth observations. Use its clues to decide what to examine by hand when arriving at a hotel, rental or unfamiliar room.

GUIDED LENS CHECK

Use the camera preview to inspect objects for small reflections. A three-step checklist guides a manual sweep, and the rear-camera torch can help illuminate reflective surfaces where supported. This is a visual inspection aid: the phone does not gain thermal vision or automatic infrared detection. A reflection alone does not identify a camera.

MAGNETIC FIELD READINGS

The magnetic mode uses the phone magnetometer and displays field strength in microtesla. It collects an initial baseline, then highlights deviations as you move the phone. Readings are approximate and depend on the sensor and surroundings. Magnets, speakers, wiring and ordinary electronics can influence the result; a high reading does not establish that a hidden camera is present.

BLUETOOTH TRACKER CHECK

The tracker mode listens for Bluetooth signals from item trackers such as AirTag, SmartTag, Tile and Chipolo and sorts what it hears. Trackers that report being away from their owner are listed first, trackers whose state cannot be read (for example Tile) are listed next, and devices that are not trackers, such as nearby iPhones, Galaxy phones and tags right next to their owner, are counted in a folded "excluded" list you can open, so nothing is silently hidden. If Bluetooth is off or no signal was heard, the result says so instead of showing an all-clear.

Pick where you are scanning (home, car, work or other) and scan again later somewhere else: a tracker seen in more than one place within a day is flagged as possibly travelling with you. Tap Find on a tracker to follow its signal: the screen shows whether the signal is getting stronger or weaker and the phone pulses faster as it gets stronger. After you find it, the app shows how to remove the battery and what to do next. A repeat sighting is not proof; if you feel unsafe, go somewhere safe and contact the police or a support service.

Limits: signal strength is not a distance. Trackers that are switched off, tags that have only just left their owner, and GPS or cellular trackers cannot be detected by a Bluetooth app. For Google Find Hub tags, rely on Android's built-in unknown tracker alerts. Tracker signatures have not been verified with every model. AirTag, SmartTag, Tile, Chipolo and AirPods are trademarks of their owners; this app is not affiliated with Apple, Samsung, Tile or Chipolo.

KEEP YOUR CHECK ORGANIZED

Mark rooms on the area checklist, save sweep sessions and keep selected Bluetooth devices on a watchlist to review reappearances. Work through one area at a time and physically inspect anything that needs attention. A quiet reading or an empty device list is not proof that a room has no camera.

ACCESS AND LIMITS

Camera permission enables the preview. Bluetooth scanning needs the Nearby devices permission (no location access is requested on Android 12 and later); if you decline it, the app explains how to allow it in Settings instead of asking again. Available results vary by phone hardware, permissions and signal conditions. The app contains advertising and uses Firebase Analytics; these services can make network requests. It is an inspection companion, not a security guarantee or a substitute for a thorough physical search.