Apple uses a lot of open source software, but tries to eliminate free (as in speech) software from its stack. Apple is also the champion of not allowing device

Apple uses a lot of open source software, but tries to eliminate free (as in speech) software from its stack. Apple is also the champion of not allowing device owners to tinker with their devices. This doesn't make their involvement into open source any less and it is highly appreciated, but it also doesn't raise them above criticism. Also, LodSys and Microsoft have far less customers on the street. Especially LodSys.