https://www.cnet.com/news/better-snapchat-ar-lenses-are-now-available-on-iphone-x/

Snapchat Lenses just got better for iPhone X users

The newest version of the Snapchat app for iOS utilizes the iPhone X TrueDepth camera to make the real-time Lens selfies -- which can be anything from virtual facepainting to cat whiskers to masquerade masks (shown here) -- more realistic than ever, thanks to improved shading, motion tracking and bokeh (blurred background) effects.