Monthly smartphone ownership figures based on surveys conducted by comScore

Each month, research firm comScore releases data tracking changes in smartphone operating systems market share. We've compiled over three years' worth of this data in the exclusive chart below. 

For more:
- read the December 2009 release
- read the January 2010 release
- read the February 2010 release
- read the May 2010 release
- read the December 2010 release
- read the January 2011 release
- read the February 2011 release
- read the March 2011 release
- read the April 2011 release and our article
- see our May 2011 article
- see our June 2011 article
- see our July 2011 article
- read the August 2011 release
- read the September 2011 release
- read the October 2011 release and our article
- read the November 2011 release and our article
- read the December 2011 release and our article
- read the January 2012 release and our article
- read the February 2012 release and our article
- read the March 2012 release and our article
- read the April 2012 release and our article
- read the May 2012 release and our article
- read the June 2012 release and our article
- read the July 2012 release and our article
- read the August 2012 release and our article
- read the September 2012 release
- read the October 2012 release and our article 
- read the November 2012 release and our article 
- read the December 2012 release and our article
- read the January 2013 release and our article 
- read the February 2013 release and our article 
- read the March 2013 release and our article