This is another “duh” survey. Android dominates in pure market share for smartphones (over 85%). The real story here is that Facebook is number 1. Maybe not a shocker, but people do have to install it and set it up.
Other non-Google apps are Instagram (owned by Facebook). Apple Maps and Yahoo News. Apple Maps surprised me being tied for #10. With all the bad press and the fact that Apple only has about 22% of the market this was unexpected.