Android and iOS combined accounted for a whopping 96.3% of all smartphone shipments worldwide in 2014. Android is on the top with 81.5% of the market, where iOS lacks behind with 14.8% only.
2014 Market Share
Ramon Llamas, Research Manager with IDC's Mobile Phone team, said - "Many of the same drivers were in play for Android and iOS to tighten their grip on the market, A combination of strong end-user demand, refreshed product portfolios, and the availability of low-cost devices particularly for Android drove volumes higher."
It's expected that Google's own OS will continue growing with more Android-powered device are released into the markets (Smartphones, Tablets, TVs, Smartwatches, Gaming consoles... etc).