A wagering game system and its operations are described herein. In some embodiments, the operations can include receiving application data provided from multiple applications on a wagering game machine. The application data can indicate needs by the multiple applications to present content on the wagering game machine. The operations can also include prioritizing the presentation of the content based on control rules that govern interoperability between the multiple applications. The operations can also include determining access rights, subscription levels, or other limitations on the multiple applications to present the content and access to each other's application data. The operations can further include presenting controls so that player accounts can modify the manner or priority of presenting the content.