Google Lens is an app that uses computer vision and AI to identify objects captured by a smartphone camera and provide relevant information. It can identify plants and flowers, connect to WiFi networks by scanning labels, and provide business information by scanning storefronts. Google Lens is integrated into the Google Photos and Google Assistant apps and uses neural networks to detect and identify objects more accurately than previous apps. It launched on Google Pixel phones in 2017 and is now available on iOS devices through the Google Photos app.