Over a six-month period, iOS' mobile web share has grown 2 percent at the same time as Android's has dropped 2 percent, according to new tracking data from Chitika Insights. Covering May 27th through November 27th, the information shows iOS averaging about 65 percent, and Android roughly 35 percent. In the most recent figures, though, iOS is up to 67 percent, while Android is at 33.