Uploading to the ViewAR is quite simple, once you respect all the requirements and figured out the workflow. Still, you have to be a skilled 3D designer to produce good content for real time rendering applications.
If you are not a skilled 3D designer, you can also request 3D models from us.
Here is a set of information we put together for your content creation:
If you want to give it a try yourself, here is some information to get you started: