A commanding 38 per cent of all smartphone users in the U.S. used Android-based devices in the three months ending in May, ComScore reported on Tuesday.
ComScore's survey of 30,000 users found that Android's market share grew by 15 per cent compared to its February survey results. That survey found that 33% of all smartphone subscribers used Android.
The popularity of Apple's iPhone also grew in the latest survey, as its U.S. market share increased from 25.2 per cent share in February to 26.6% share in May, a 5 per cent hike, ComScore said.
The shares of all the other major platforms declined over the period.
For instance, Research in Motion's share of the smartphone market dropped to 24.7 per cent share from 28.9 per cent in the earlier report. The decline let Apple take over second place in the survey.
Microsoft's held 5.8 per cent of the market in the latest survey, down from 7.7 per cent in the February report. Palm's share declined from 2.8 per cent to 2.4 per cent, ComScore said.
The ComScore results are strikingly similar to last week's Nielsen U.S. report that covered roughly the same period.
The Nielsen survey found that Android had a 38 per cent share smartphone market share in its May report, up two percentage points from three months earlier.
Apple's iPhone market share grew to 27 per cent from 26 per cent, Nielsen said.
Nielsen blogged that the iPhone had shown the most growth in recent months, although ComScore's data indicates otherwise.
Both surveys are considered highly reliable.
Nielsen surveys between 20,000 to 25,000 mobile subscribers each month, compared to about 30,000 in the latest ComScore results.
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