According to the study done by Neilson wire, Facebook ranks no.2 where the android market is at the top and the Google’s other products follows the ranking. Apart from the social network Facebook, social apps are lightly represented here; no Twitter, LinkedIn, or Tumblr in sight. Otherwise, core functions like search, email, YouTube, weather, and maps — and Angry Birds — round out the top ten.
The lists consists the age groups from 18-24, 25,34, and 35-44, the study finds Google Search, Gmail, and Google Maps shuffling behind Facebook, and YouTube, Angry Birds, and Pandora radio fight for spots six through eight. It's notable that the top six apps in each age group boast usage over 50%, with a steep drop-off of at least 15% separating the rest of the list.