System and method for data simplification in wireless communications are enabled by an application developer toolkit used to convert complex service messages to a simplified data structure for storing information associated with a remote service that utilizes complex data structures for conveying the information to devices that access the remote service. The application developer toolkit also outputs maps for converting the complex service messages to simplified wireless messages in a format of the simplified data structure, and maps simplified wireless messages to complex service messages. A proxy located in a communications path between the wireless device and the remote service uses the maps to convert complex service messages to simplified service messages, and vice versa.