Are the Qlik Sense Mashups always web based? That is, can they be exported to an Excel spreadsheet, PDF, PowerPoint, etc.?
If that is your requirement, use NPrinting. You can create a single NPrinting report from multiple qlikview and qliksense apps.
The mashup that you create as a webpage can have behavior that exports itself to other formats. That said, a mashup does not have to be a webpage. It can be any kind of application (eg dotnet) that is capable of interfacing with the Sense APIs.
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