WORLDWIDE — Thousands of users in the U.S. have flocked to Google’s Arts & Culture app to compare selfies alongside their art historical doppelgängers.

The Google Arts & Culture app is available in most states, but a few of us are missing out — namely, Texans.

Google confirmed to CNN Tech that the face-matching tool is not available in Illinois and Texas, but declined to comment on why.

Experts believe the reason is that Texas and Illinois’ have laws in place that rule against facial scanning technology upon which Google’s app relies.

Texas’s Business and Commerce Code law covering biometric identifiers, passed in 2008 and 2009, requires specific consent from users for their biometric data to be used for commercial purposes and stipulate that biometric identifiers can only be kept for a year. 

The Chicago Tribune was first to report on the laws affecting the app feature's availability.

On Wednesday, Google said people have already taken more than 30 million selfies on the app.

While the company declined to say how it knows which users are in Texas and Illinois, some apps are equipped with the capability to restrict content based on a user's IP address.