1. An emulation server comprising: one or more processors; one or more network communication interfaces; and a memory communicatively coupled to the one or more processors, wherein the memory stores instructions that when executed cause at least some of the one or more processors to: instantiate an emulation environment using the emulation server based at least in part on an end user identity and an application to be downloaded to a user device; configure the emulation environment responsive to end user input; collect user reputation metrics for the application based on user interaction activity and application activity in the emulation environment; save the configured emulation environment; and calculate a reputation score for the application responsive to user reputation metrics collected from a plurality of users.