Android software.I think marshmellow is the new one on the bloke or is about to be.Early version of lollipop had over heating problem which is now resolved .DONT RECOMMEND RUNNING IT WITH DJI GO APP
Remember, Android is google. They always use cutsie wootsie code names for their software. There was also an Ice Cream Sandwich version, as well as lots of others. Basically, every major update is a new name.
I'm using a Digiland 718m tablet with Lolipop version. Works fine. No overheating so far but have no used it in summer. Only thing I have not tried was the follow me mode.