New social media app that gives out stuff

An app called (pronounced share-zees) just came out. It’s a social media app for posting pictures and videos, and when you post, you get stuff. Imagine you go for a run and post a picture along the way, you may just get a free sports drink (for example). They have a video here:
We’re currently looking to get a few families involved, for marketing purposes. Do you know someone getting engaged or having a baby? is a new app and they’re looking to give-away free stuff as part of a new promotion.