Confused – Geofilter Creator - Create Geofilters for Snapchat Review

I got the app to celebrate my glambaby's birth and looking at the advertisements of Geos I'm wondering why we can't see a preview of our creation before purchasing? How will we know if our filter will be exciting like the ones your app displays ? Will our filter move too? I mean who wants to buy something that isn't interactive like SC filters are known for?
Review by karmelkoffee on Geofilter Creator - Create Geofilters for Snapchat.