Google’s new Universal Analytics has a “measurement protocol” specification, and the above package uses that to send hits to analytics. The advantage here is that there’s no need for native library for each platform. So the same code actually works on mobile, desktop and web player platforms (Desktop - Windows, OSX, Linux, Windows8; Mobile - iOS, Android, Windows Phone 8, BlackBerry 10; Browser - Unity Web Player plugin). It’s implemented in pure C# and uses Unity’s WWW class for networking.