NOI is a free iPhone app developed by KeyData Labs LLC that aims to protect your privacy by helping you detect hidden spy cameras. Whether you are staying in a hotel or an Airbnb, NOI provides various techniques and methods to ensure you are not being watched without your consent.

One of the key features of NOI is the ability to scan your WiFi network and discover connected devices, allowing you to identify any suspicious devices that may be hidden cameras. Additionally, the app utilizes magnetic field detection to find hidden cameras that are often concealed in objects such as plants, alarm clocks, or night lamps. By moving your iPhone closer to these objects, you can determine if they are emitting a magnetic field, indicating the presence of a hidden camera.

If the previous methods don't provide satisfactory results, NOI also offers manual camera detection. The app provides audio guides to help you identify common hiding spots for spy cameras. By following these guides, you can ensure your privacy is protected.

It's important to note that NOI offers auto-renewable subscriptions, which may provide additional features and benefits. For more information about NOI's privacy policy and terms of use, please visit their website.