One of the first differences that jumps out is Instagram’ s younger user base. The older generation really isn’ t active on the app. A majority of Instagram users are under 30, and many are in their teens. This is great for companies trying to reach a younger demographic. Facebook on the other hand has been. Between Fall and Spring of 2014, the number of teens using Facebook fell from 72 % to 45 %. The same study also found that 38 % of teens said that Instagram is a favorable marketing channel vs. 21 % for Facebook.