TikTok is a social media platform for creating and sharing short videos, founded by Zhang Yiming in September 2016 and owned by the Chinese company ByteDance. The app has seen explosive growth, achieving over 1 billion monthly active users and 3 billion downloads, with a significant presence in the U.S. where 37.36% of mobile internet users are engaged. Despite its popularity and engaging content, TikTok faces challenges such as offensive content and potential issues with addiction.