To quit your current presentation, tap the home button {icon-home.svg} . You will be taken back to the create section.
When you have a work in progress and you haven't saved it, you'll get a pop up with two different options.
1. Quit
You will be taken back to the create section and all your work will be lost.
2. Save and Quit
All your work will be saved before quitting the app, it will just take a few seconds. You will be taken to the Create section.