This argument holds less weight, when you consider things like iMessages, where there are network effects and no cross-platform support. Also, there are a numbe

This argument holds less weight, when you consider things like iMessages, where there are network effects and no cross-platform support. Also, there are a number of apps that are only available on IOS, due to its higher market share and greater user spend. So there is a high switching cost, which is a direct function of Apple's dominant market position.