Navigation Bar. Full Screen Gestures or Buttons

How do I turn this into a poll?

I want something different so I went with Gestures. One of the reasons why I use launchers like Nova Prime and Evie.

You create a poll from the website but not the app
 
I thought I would like gestures, but I can't figure out how to switch back and forth to the last app like you can by double tapping the multitasking button.