Comscore Reports January 2011 U.S. Mobile Subscriber Market Share

Google Android Captures #1 Position in Smartphone Market

RESTON, VA, March 7, 2011 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released data from the Comscore MobiLens service, reporting key trends in the U.S. mobile phone industry during the three month average period ending January 2011. The study surveyed more than 30,000 U.S. mobile subscribers and found Samsung to be the top handset manufacturer overall with 24.9 percent market share. Google Android took the lead among smartphone platforms with 31.2 percent market share, after two short months in second place.

OEM Market Share
For the three month average period ending in January, 234 million Americans ages 13 and older used mobile devices. Device manufacturer Samsung ranked as the top OEM with 24.9 percent of U.S. mobile subscribers, up 0.7 percentage points from the three month period ending in October. LG ranked second with 20.8 percent share, followed by Motorola (16.5 percent), RIM (8.6 percent) and Apple (7.0 percent).

Top Mobile OEMs
3 Month Avg. Ending Jan. 2011 vs. 3 Month Avg. Ending Oct. 2010
Total U.S. Mobile Subscribers Ages 13+
Source: Comscore MobiLens
  Share (%) of Mobile Subscribers
Oct-10 Jan-11 Point Change
Total Mobile Subscribers 100.0% 100.0% N/A
Samsung 24.2% 24.9% 0.7
LG 21.0% 20.8% -0.2
Motorola 17.7% 16.5% -1.2
RIM 9.3% 8.6% -0.7
Apple 6.4% 7.0% 0.6

Smartphone Platform Market Share
65.8 million people in the U.S. owned smartphones during the three months ending in January 2011, up 8 percent from the preceding three-month period. Google Android captured the #1 ranking among smartphone platforms for the first time in January with 31.2 percent market share. RIM ranked second with 30.4 percent market share, followed by Apple with 24.7 percent. Microsoft (8.0 percent) and Palm (3.2 percent) rounded out the top five.

Top Smartphone Platforms
3 Month Avg. Ending Jan. 2011 vs. 3 Month Avg. Ending Oct. 2010
Total U.S. Smartphone Subscribers Ages 13+
Source: Comscore MobiLens
  Share (%) of Smartphone Subscribers
Oct-10 Jan-11 Point Change
Total Smartphone Subscribers 100.0% 100.0% N/A
Google 23.5% 31.2% 7.7
RIM 35.8% 30.4% -5.4
Apple 24.6% 24.7% 0.1
Microsoft 9.7% 8.0% -1.7
Palm 3.9% 3.2% -0.7

Mobile Content Usage
In January, 68.1 percent of U.S. mobile subscribers used text messaging on their mobile device, while browsers were used by 37.0 percent of subscribers (up 0.8 percentage points). Subscribers who used downloaded applications comprised 35.3 percent of the mobile audience, representing an increase of 1.6 percentage points. Accessing of social networking sites or blogs increased 1.1 percentage points, representing 25.3 percent of mobile subscribers. Playing games represented 23.7 percent of the mobile audience, while listening to music represented 16.5 percent (up 1.1 percentage points).

Mobile Content Usage
3 Month Avg. Ending Jan. 2011 vs. 3 Month Avg. Ending Oct. 2010
Total U.S. Mobile Subscribers Ages 13+
Source: Comscore MobiLens
  Share (%) of Mobile Subscribers
Oct-10 Jan-11 Point Change
Total Mobile Subscribers 100.0% 100.0% N/A
Sent text message to another phone 68.1% 68.1% 0.0
Used browser 36.2% 37.0% 0.8
Used downloaded apps 33.7% 35.3% 1.6
Accessed social networking site or blog 24.2% 25.3% 1.1
Played Games 23.7% 23.7% 0.0
Listened to music on mobile phone 15.4% 16.5% 1.1

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital business analytics. For more information, please visit www.comscore.com/companyinfo.

Contact:
Adam Lella
Comscore, Inc.
+1 (312) 775-6474
press@comscore.com