Here is the link to download Home Up. When it is installed you will find it home screen settings. Pinch in on your Home screen, press the cog wheel that says settings, scroll all the way down to more customization. It will open Home Up.
You don't need to pinch the screen anymore, you can simply just go into settings, homescreen, and scroll to the bottom, and click on "more customizations" and Home Up will open if you have the APK downloaded!
