If you are seeing two copies of the Fluent Forever app on your phone, then most likely you also had access to our app when it was in beta — as a backer or early adopter. Now that the app is no longer in beta, you will want to delete that version off of your phone and get the new version direct from the App Stores (Apple / Android).
So, in summary, make sure that the only version you have on your phone is the one that looks like this:
Bye bye beta... We do not miss you...