A data marketplace infrastructure allows a data source company or a third party to automate generation of one or more applications in association a data feed. In contrast to custom, manual development of applications, the data marketplace infrastructure constructs applications that suggest applicability to the data feed. Factors suggesting applicability include without limitation similarity of data structures and similarity of subject matter. Based on an applicability determination, patterns of historical visual usage and patterns of historical business logic usage may be used to identify expressions specifying the visuals and business logic that may be copied to and used in a new application in association with the data feed. Furthermore, previewers can provide feedback to help tune which automatically generated applications are maintained in association with the data feed and which are discarded or altered in some way.