A new app will notify users if smart glasses are likely nearby. The aptly named Nearby Glasses was developed in response to media coverage outlining how glasses like Meta’s Ray-Bans have been used to film people without their consent.

As first reported by 404 Media, the app detects the unique Bluetooth signature emitted by smart glasses and sends a push alert that someone wearing the device may potentially be nearby. “I consider it to be a tiny part of resistance against surveillance tech,” the app’s developer Yves Jeanrenaud told 404 Media.

Smart glasses have sparked increased privacy concerns, especially as Meta is reportedly working to add facial recognition technology to its Meta Ray-Bans. OpenAI is also reported to have a pair of smart glasses in the works. It bears mentioning that false positives may occur, including from VR headsets.

Nearby Glasses is currently available on the Google Play Store and GitHub.

This article originally appeared on Engadget at https://www.engadget.com/apps/someone-made-an-app-to-warn-you-if-smart-glasses-are-nearby-183359723.html?src=rss