Snapchat is a photo messaging app launched in 2011 that allows users to send disappearing photos and videos (snaps) to friends. It reached 100,000 users by spring 2011 and was valued at $10 billion by 2014, though it currently does not generate revenue. Snapchat has found popularity among teenagers and young adults for its ephemeral messages and live stories from events around the world, revolutionizing social media communication.