Methods, computer systems, and computer-readable storage media for using a single application on a mobile device to access a plurality of client domain sites are provided. The single application on the mobile device receives from a user of the mobile device a set of authorization credentials. Based on the set of authorization credentials, the single application receives a first client domain uniform resource locator from a third-party directory service. The first client domain uniform resource locator is used to access a client gateway service; the client gateway service provides a secure access point to a number of different service solutions hosted by a client. Upon the user inputting a set of authentication credentials, the user is able to access information from one or more of the different service solutions.