comScore today released the results of its monthly rolling survey of U.S. mobile phone users for the January-March period, showing that Apple's smartphone market share rose 2.7 points from December to March, from 36.3% of total U.S. smartphone platform and hardware sales to 39%, marking a record high share for the company.



Samsung was the hardware manufacturer with the second largest share of the market at 21.7% in March, up from 21% in December. HTC, Motorola, and LG again experienced slight drops in market share, with HTC suffering the heaviest loss going from 10.2% to 9%.

Google's Android continues to be ranked as the top smartphone platform with 52% of smartphone platform share, though it experienced a drop from 53.4% in December, which was absorbed by Apple.



Apple's share increased 2.7 points to 39%, while Blackberry continued to drop, hitting 5.2% down from 6.4% in December. Microsoft remained steady at 3%, though saw a small drop from 3.2% in February's report. Collectively, Apple and Google control 91 percent of the smartphone market, with Apple making continual gains each month.

comScore's data tracks installed user base rather than new handset sales, which means it is more reflective of real-world usage but slower to respond to shifting market trends than some other studies.