Alipay and Wangwang are relatively independent. You don’t need Wangwang when using Alipay.

But if you need to communicate with merchants using Wangwang, you must download and register to use Wangwang.

Wangwang has transaction management. If you bind Alipay, you can see

Alipay does not necessarily need to be bound to other accounts such as Taobao and Alibaba. Wangwang is a chat tool for Taobao and Alibaba, which means that Alipay does not necessarily need to be bound to Wangwang.

In general, it is recommended to download the latest version directly from the official website.

Based on your question, it is estimated that you want to communicate with merchants and then pay with Alipay. It is recommended to register Taobao and Alipay, bind them to each other, and download the latest version of Aliwangwang from the official website at the same time.