comScore (, a leader in measuring the digital world, today released data from the “comScore MobiLens service,” reporting key trends in the U.S. smartphone industry during the three month average period ending June 2013.

Apple ranked as the top smartphone manufacturer with 40% OEM [original equipment manufacturer] market share, while Google Android led as the #1 smartphone platform with 52% platform market share.

Nearly 142 million people in the U.S. owned smartphones (59% mobile market penetration) during the three months ending in June, up 4% since March. Apple ranked as the top OEM with 39.9% of U.S. smartphone subscribers (up 0.9 percentage points from March). Samsung grew its share two percentage points with the release of its new Galaxy S4 model, ranking second with 23.7% market share. HTC ranked third with 8.5%, followed by Motorola with 7.2% and LG with 6.6%.

Android ranked as the top smartphone platform in June with 52% market share, followed by Apple with 39.9% (up 0.9 percentage points), BlackBerry with 4.4%, Microsoft with 3.1% (up 0.1 percentage points) and Symbian with 0.3%.

MobiLens data is derived from an intelligent online survey of a nationally representative sample of mobile subscribers age 13 and older. Data on mobile phone usage refers to a respondent’s primary mobile phone and does not include data related to a respondent’s secondary device.