TikTok

TikTok rewrote content discovery with an algorithm that drives 2.5 billion downloads and a 90% user retention rate within 7 days—outperforming #5 Spotify in viral reach per post. Its short-video format generated $16 billion in revenue in 2023, growing 40% faster than the average social platform, and turned 500+ creators into overnight millionaires. By automatically serving personalized feeds, it is 30% more addictive than Instagram Reels, forcing every competitor to copy its model.