Hidden cameras are everywhere — and harder to spot than you think. This guide covers how they work, where they hide, and how to find one in under a minute.
Why hidden cameras are a real threat
Miniature lenses now cost under $10. They fit inside smoke detectors, alarm clocks, picture frames and USB chargers. Most rental hosts will not know they are there until you find one.
Types of hidden camera detectors
App-based detection
The most accessible. Uses your phone’s camera + sensors to scan for lens reflections and IR emitters.
Infrared detection
Night-vision cameras emit infrared light that is invisible to the eye but visible through your phone’s front camera.
Magnetic wave method
Useful for finding microphones and trackers embedded in walls, sockets and furniture.
Step-by-step scanning guide
Turn off the lights. Open NoSpy. Start with the IR mode. Walk slowly around the room. Tap any hit to inspect.
What to do if you find a camera
Photograph it in place. Contact the host or property manager. Call the police if you believe a crime has occurred.
How to scan a room for hidden cameras in 60 seconds
- Open NoSpy and switch to IR detection mode.
- Turn off the lights.
- Walk slowly around the room pointed at suspicious objects.
- Watch for bright IR dots in the viewfinder.
- Tap any flagged hit to inspect.
Find hidden cameras before they find you.
NoSpy is free on the App Store. Works offline. No account required.
Download on the App Store