Those who have an official WeChat account can directly apply to register a mini program under the official WeChat account. No re-authentication is required, and there is no need to spend another 300 yuan. 1. Click "Register Now" in the upper right corner of the "WeChat Public Platform" official website to enter. 2. In the new interface, click "Mini Program" in the lower left corner to enter the registration interface. 3. In the registration interface, fill in relevant information such as email, password, verification code, etc. 3. After filling in the information, check the box below, click the registration button, and apply to open the mini program. 4. It’s the first time to use a mini program. You can click "Apply Now" on the right side of the interface to apply for a test number for a mini program, and then officially activate it after you are familiar with the relevant functions. WeChat is a free application launched by Tencent on January 21, 2011 to provide instant messaging services for smart terminals. It was built by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong. WeChat supports the rapid sending of free voice messages, videos, pictures and texts across communication operators and operating system platforms. At the same time, you can also use service plug-ins such as "Shake", "Moments", "Public Platform", and "Voice Notepad" by sharing streaming media content and location-based social plug-ins. As of the second quarter of 2016, WeChat has covered more than 94% of smartphones in China, with 806 million monthly active users, covering more than 200 countries and more than 20 languages. In addition, the total number of WeChat public accounts of various brands exceeds 8 million, the number of mobile application dockings exceeds 85,000, advertising revenue increased to 3.679 billion yuan, and the number of WeChat payment users reached approximately 400 million. WeChat provides public platform, friend circle, message push and other functions. Users can add friends and follow the public platform by "shaking", "searching numbers", "nearby people", scanning QR codes, etc. At the same time, WeChat will share the content with friends and share the exciting content seen by users to WeChat Moments. In December 2020, WeChat on iOS was updated to version 7.0.20, and a "WeChat Bean" was added to the profile page. On January 21, 2021, WeChat was updated to version 8.0. In July 2021, in the latest version 8.0.8, WeChat not only can log in to mobile phones and PC/Mac devices at the same time, but also added the function of logging in to tablet devices at the same time, which means that the use of tablet devices on WeChat is logically related to mobile phones and Computers are at the same level, and the number of devices a user can log into at the same time reaches as many as three. On the WeChat user complaint page, the item "fans' bottomless idolization behavior" was added.