[quasarsunnix]

I think the issue is horizontal vs. vertical monopolies. Apple do have a monopoly, but it's vertically integrated one. That's arguably their unique selling point; tightly integrated products without a great deal of customization.

Google on the other hand have a monolithic market share in a number of key markets. There's really no competition to them in search or video for instance, whereby they command extremely dominant market share.

Apple on the other hand do not dominate any markets, they just have a locked down product. Pretty similar to luxury cars, Nintendo, and other companies that think their customers value the integration over an open ecosystem.