For a more complete picture:

Amazon

    Revenue		52.89B	39.34%
    Net income		2.53B	1186.29%
    Diluted EPS		5.07	1167.5%
    Net profit margin	4.79%	821.15%
    Operating income	2.98B	375%
    Net change in cash	2.92B	-
    Cash on hand	19.82B	50.14%
    Cost of revenue	30.63B	30.62%

Apple

    Revenue		53.26B	17.3%
    Net income		11.52B	32.14%
    Diluted EPS		2.34	40.12%
    Net profit margin	21.63%	12.66%
    Operating income	12.61B	17.12%
    Net change in cash	-13.09B	483.36%
    Cash on hand	31.97B	72.16%
    Cost of revenue	32.84B	17.64%

Revenue for Amazon is climbing faster than for Apple. And Amazon's cost of revenue is growing significantly slower than revenue while Apple's costs of are growing slightly more than revenue.