Abstract: An application sequence may be composed in response to a user query. The application sequence may be based upon user data accessed by the application concierge service. Each application within the personalized chain of applications may request and receive data from the application concierge service about the other applications within the chain.

Abstract: An application search system may maintain an index of applications available from multiple different application stores, and includes parameters, such as features and/or content of the applications. When a user submits a query, the system may derive contextual information pertaining to a user device used to submit the query, applications installed on a particular user device and/or usage information for installed applications. The system then may, in one example, determine one or more applications relevant to the search query and, depending on the contextual information derived, may provide an entry point to access a particular application at a task level, may prompt the user to install the application, or may provide a web result related to the particular application.

Abstract: An application transfer protocol allows users to find applications relevant to a search query in an application search system. The application transfer protocol is used with an index that maintains a database of applications that includes parameters, such as features and/or content of the application. When a user submits a query, the system determines one or more applications relevant to the search query and implements the application transfer protocol to identify and present results to a user.

Abstract: An application sequence may be composed in response to a user query. The application sequence may be based upon user data accessed by the application concierge service. Each application within the personalized chain of applications may request and receive data from the application concierge service about the other applications within the chain.