微信十五年：从地球启动页到7.8亿人的朋友圈记忆

Core Insights - WeChat, launched on January 21, 2011, is celebrating its 15th anniversary in 2026, marking a significant milestone in digital social interaction [3] - The app's early design details and iconic features, such as the Earth launch screen, have sparked renewed public interest and discussion [3] User Engagement - Daily active users accessing Moments has reached 780 million, with 120 million users actively posting content [3] - The Moments feature has evolved beyond social display to become a unique space for individuals to document life changes and significant milestones [4]