WeChat, an English name for Weixin, is a free application launched by Tencent on January 21, 2011, which provides instant messaging services for smart devices. Led by Zhang Xiaolong, the Tencent Guangzhou R&D Center’s Bai Pin team developed WeChat. WeChat supports cross-carrier and cross-platform communication through the internet, allowing users to send free voice messages, videos, images, and texts with minimal data consumption. Additionally, it offers various service plugins including Shake, Drift Bottle, Moments, Official Accounts, and Voice Notes, which allow users to share multimedia content and engage in location-based social activities.