I ask some version of this question every year or two, and have yet to find a real answer. Like the tile says, looking to create the illusion of hundreds of actual mobile app users all across the globe on different networks, devices, etc. Spooffing should represent an average cross-section of actual users in every way so app devs cannot fingerprint system to determine anything other than normal mobile users. Not trying to buy hundreds of actual devices and wire them up to pegboard in a shed or anything like that. Specifically looking to setup quick deployments of Windows or Linux virtual machines, and efficiently run a number of devices per VM, or divide server to many VM's with single "device" per VM. Whichever works. Essentially looking to do what Multiloginapp does for mobile browsers (profile based spoofing of all aspects of desktop web browser), but for various app use rather than browsers. I understand it's a bit of a tall order, so really hoping to break some ground here and at least get a conversation going about what such a system would need to look like.