This article discusses software internally used by Apple.
Acquiring a copy without Apple's consent is illegal and may result in being scammed.
Ad Tester is an Internal application that is used for testing advertising ID's on internal test prototypes. Has yet to be seen in the wind, however there is information that has been leaked out by an employee. This would be used by team members testing new hardware in their everyday lives while under a highly strict NDA. Reports information of passes and failures to a log file that can later be send to a data collection tech within the testing department.