Two market research reports have come out within days telling two different, yet complimentary, stories about Apple's iOS and Google's Android operating systems: iOS is winning audiences in the U.S. again, but Android is taking over the world.

According to global market research firms Canalys and Strategy Analytics, the Android platform grew in global dominance, running on about 785 million devices shipped in 2013, but research from Consumer Intelligence Research Partners (CIRP) shows that Apple has just barely edged out Android in the U.S. during the final quarter of 2013.