Though Android is still the top smartphone platform in the US with 52.3% market share for the three-month period ended January, Apple's share grew 3.5 percentage points, to 37.8% as of January.
Meanwhile, Apple widened its lead as the top smartphone manufacturer with 37.8% OEM market share, up 3.5 percentage points from October.
Below, additional findings from comScore.
Smartphone adoption surged in January 2013, driven largely by Apple: Some 129.4 million people in the US owned a smartphone in the three months ended January—55% mobile market penetration—up 7% from October.
Smartphone Platform Market Share
Google Android ranked as the top smartphone platform with 52.3% market share, while Apple's share increased 3.5 percentage points to 37.8%. BlackBerry ranked third with 5.9% share, followed by Microsoft (3.1%) and Symbian (0.5%).
Apple ranked as the top OEM with 37.8% of US smartphone subscribers (up 3.5 percentage points from October). Samsung ranked second with 21.4% market share (up 1.9 percentage points), followed by HTC with 9.7% share, Motorola with 8.6% and LG with 7% (up 0.3 percentage points).