Comscore has released their smartphone market share numbers for the 3 months ending October 2013, compared with the 3 months ending July 2013.
Over the 3 month period Windows Phone’s share of the smartphone user base in USA increased by 0.2%, and with the growth in the market that has meant that around 475,000 Windows Phone users have been added over the same period, leaving us with an installed base of 4.774 million users.
Over the period nearly every mobile operating system grew share, except for Blackberry, which suffered a massive 0.7% loss, one of the biggest ever, leaving it only 0.4% away from the Windows Phone installed base. The other operating system which saw share loss was Symbian, which is of course no longer being sold in USA.
Interestingly the numbers appear to indicate those departing Blackberry and Symbian users chose Windows Phones as often as they chose iPhones, with the majority choosing Android handsets.
See the full report at Comscore here.