Snapchat

Snapchat is an image messaging and multimedia mobile application. One of the principal concepts of Snapchat is that pictures and messages are only available for a short time before they become inaccessible. A "lens" feature, introduced in September 2015, allows users to add real-time effects into their snaps by using face detection technology which is activated by long-pressing on a face within the viewfinder.

On March 22, 2017, Snapchat released a Big Bird-themed lens to celebrate Big Bird's birthday.