The differences between iPhone users and Android users are legion—it's amazing how much owning a certain smartphone can represent one's personality, habits, income, and education.
The most recent sudy comparing the differences was conducted by Onavo, a free app that saves users data (while obtaining a lot of information about those users). This study found that 90% of iPhone owners use Facebook but just 63% of Android owners do. It seems that Android users—keep in mind Android is a Google product—prefer Google+, with 35% using the new social network and only 8% of iPhone owners doing the same.
iPhone users spend an average of 45 MB of mobile data per month on Facebook comared to 19 MB for Android users; iPhone users spend just a single MB on Google+ though, while Android users spend 8 MB. In fact, Facebook accounts for 10% of all mobile data on the iPhone (a mere 5% for Android).
Both use Twitter equally, and the same can be said for LinkedIn, Foursquare, and Facebook Messenger, so it appears that the division in this instance applies to only the two social networks.