Viral Waiting List - UpViral

This project is to add a Viral Waiting list to a WORDPRESS website. Home page Email Opt-in form turns into a Waiting List with sharing features to facebook, twitter, email, etc. This is why it is called a Viral Waiting List. You can google it for examples. There are a few software options such as UpViral. I am looking for someone with experience creating contest, rewards, or viral waiting list using a tool such as UpViral, Viral-Loops, Vyper etc. [login to view URL] UpViral is the platform I have access to.