While Android remained the most-used platform, iOS was expected to see a big jump in app development.
The Google operating system (OS) claimed a 56.2% share of smart phone sales in Great Britain in the three months leading up to March 2014.
62% of visitors to entertainment and gaming sites preferred using a Facebook sign-in, while only 20% favored Google.
Among visitors to business-to-business sites, LinkedIn was just as likely to be preferred as Google in Q3 2013, although both trailed Facebook.
With 75% share of total ad impressions, the smart phone share grew by 7% points from 2011.
64% of mobile game impressions came from devices running the Android OS in Q3, while 30% came from iOS.
IDC forecasted iOS devices to make up 61% of tablet shipments in 2013. Android will make up about 33%, with Windows squeaking by with 6%.