Digital Trends – According to a recent study conducted by Nielsen and published on the official company blog, Facebook is the most popular application on Android-powered smartphones besides the Android Market. The social networking app beat out Google applications such as Gmail, Google Search, YouTube and Google Maps. The Facebook application is most popular with people between the ages of 25 to 34 and over 75 percent of people between the ages of 35 to 44 use the social networking application. While the previously mentioned Google apps are also popular among all age groups, Googleâs YouTube app is most popular among the younger segment of respondents between the ages of 18 to 24.Â