There is no WeChat Out because WeChat has not launched this function in Chinese mainland, and it only provides WeChat Out for overseas users, and there is no WeChat bound to domestic mobile phone numbers. Wechat Out is a low-cost global VoIP phone provided by Wechat, and users can only use it after recharging. After recharging, they can call numbers in other countries or regions. After dialing, WeChat can use VoIP to dial their own bound number, and then they can chat. The extended data WeChat Out function replaces the "receipt and payment" in the Chinese version of WeChat. After clicking the icon, the user will enter the address book interface, and the interface for making calls is similar to the calling interface of iOS. This function has been opened to users in Hong Kong, the United States and India [2]. US WeChat users can call China at 0.90 cents per minute, which is less than 6 cents. You can call China with a minimum recharge of $0.99.