Meet the BuzzBot & MuttBot Kit from UBTECH: another robotics kit for STEM education that gets your kids familiar with technology and programming. It has 6 robotic servos and 271 snap-together parts in addition to an app for programming. The Jimu app provides you with step-by-step building instructions.
The app has pre-programmed moves, but you can always create your own. This kit is compatible with iOS and Android smartphones.[where to get it]