In the last period, 2015 Q3, the largest presented item is Android with Market Share of 52.6%. The fastest growing participant in our report is iOS with 52.5% growth in Market Share over 17 quarters between 2011 Q3 to 2015 Q3. The topic that suffers from the biggest downturn is Blackberry OS with 96.11% decline over the same period. This report is based on data published by nielsen