Hidden Camera Detector App for Android

Hidden Camera Detector: Find Cameras and Listening Devices with Your Phone

The hidden camera and bug finder in Android Security Scan searches a room with four methods.

Short answerThe hidden camera finder is part of the Android Security Scan app and uses four methods: magnetometer readings in microtesla with audio feedback, lens and IR reflection with the camera in a dark room, cameras on the connected Wi-Fi network, and nearby Bluetooth devices. Results help locate suspicious spots but are not proof.

Written by Hakan Sevimoğlu · Last updated: 9 November 2026

Four detection methods

Hidden camera and bug finder: magnetic reading 142 µT

Magnetic: zero it in an empty area, hold the top of the phone 2–3 cm from sockets, smoke detectors, clocks and chargers; faster beeps mean electronics inside.
Lens / IR: darken the room and scan slowly; a bright reflection may be a lens.
Wi-Fi camera: lists devices on your network recognised as cameras.
Bluetooth: lists nearby devices with signal strength.

Limits

Cameras that record locally without wireless transmission do not appear in Wi-Fi or Bluetooth scans. For legal use, have devices examined forensically: digital forensics. Full app: Android spyware detection app.

Technology stack

KotlinAndroidJetpack ComposeVpnServiceUsageStatsBluetooth LEUSSDPDF

Frequently asked questions

Can a phone detect hidden cameras?

It helps locate suspicious spots using the magnetometer, camera, Wi-Fi and Bluetooth; results are not proof.

How do I check a hotel room for hidden cameras?

Darken the room and look for lens reflections, check smoke detectors, sockets and chargers with the magnetic scan, and scan the Wi-Fi network.