Android has retained its lead in smartphone sales for the 3 month period ending June 2013, with a 51.5% sales share of the smartphone market, while iOS follows with 42.5%, growing 3.3% compared to last year, according to data released today by Kantar Worldpanel ComTech.

Other OS brands to see movement include Windows with 4% smartphone sales share, up 1.1% since last year.

Among carriers, Verizon remained not only the top carrier but also the only carrier to increase its share over this time (36.9% share, up 1.9% over the last year). Otherwise, the year ending June 2013 saw little movement across other carriers. AT&T remains second (26.5%), Sprint in third (13.8%) and T-Mobile in fourth position at 10%.