With the application, the developer of Citizen Cloud app is Citizen Cloud of Shanghai Citizen Mailbox Information Service Co., Ltd., that is, "with the application", which provides one-stop services for users, including "one network" for handling government affairs, electronic license "scanning code", "three funds" and individual taxes, convenient services such as bus arrival, and community-specific applications. It is the main entrance for Shanghai municipal government to provide public services for individuals and legal persons.