Net Applications ‘counts’ unique visitors to our network sites, and only count one unique visit to each network site per day. The data is compiled from approximately 160 million unique visits per month. The information below is an aggregation of the data from this network of hosted website traffic statistics.
Net Applications’ NetMarketShare’s Worldwide Desktop Operating System Market Share, September 2011

Source: Net Applications' NetMarketShare
In August 2011, Windows was 92.90% and Mac was 6.03%.
Net Applications’ NetMarketShare’s U.S. Desktop Operating System Market Share, September 2011

Source: Net Applications' NetMarketShare
In August 2011, Windows was 84.30% and Mac was 13.36%.
Net Applications’ NetMarketShare’s Worldwide Mobile/Tablet Operating System Market Share, September 2011

Source: Net Applications' NetMarketShare
In August 2011, iOS was 53.04%, Java ME was 20.57%, Android was 15.98%, Symbian was 6.21%, and BlackBerry was 3.33%.
Net Applications’ NetMarketShare’s U.S. Mobile/Tablet Desktop Operating System Market Share, September 2011

Source: Net Applications' NetMarketShare
In August 2011, iOS was 61.13%, Android was 30.91%, BlackBerry was 6.21%, Windows Phone was 0.50%, and Symbian was 0.45%.
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