This article discusses software internally used by Apple.
Acquiring a copy without Apple's consent is illegal and may result in being scammed.
CooLtool is an AppleInternal tool to check if GPS, GLONASS, cellular and other location systems are working. You have to add a specific gps module to adjust gps on the devices. The app is for iPhone and iPad but doesn´t work on iOS 8 properly, so may it is outdated or not longer in use.