Research firm comScore is out with its usual monthly report that ranks the top smartphone OEMs and platforms for the three-month period ending in February. Apple continues to grow its lead this month as top OEM in the U.S., jumping 3.9-percent from November to 38.9-percent of the market and increasing its lead on the second biggest OEM by subscribers, Samsung:

It’s important to point out that the shipped vs. sold argument doesn’t apply to comScore’s results, as its data comes from surveys tracking smartphone subscribers and usage and not sales or units shipped. Google grabs the spot as top smartphone platform at the end of February, but Apple continues to close the gap capturing 38.9-percent of the market (up from 35 percent) compared to Google’s 51.7-percent (down from 53.7-percent):

Google Android ranked as the top smartphone platform with 51.7 percent market share, while Apple’s share increased 3.9 percentage points to 38.9 percent. BlackBerry ranked third with 5.4 percent share, followed by Microsoft (3.2 percent) and Symbian (0.5 percent).