We have used Tron for our in app reward system known as Street Credit. We created the token Street Credit which we are going to use for:
Allowing Skateboarders to purchase goods from the store
Allow brands/shops to sell goods to the store
Allow brands/shops to purchase advertisements in the app
Upon sign up, we create a wallet for the user and deposit 25 Street Credit.
To earn Street Credit, the users:
Post a skate picture or video
Get upvotes and props on their content
And we deposit the correct amount of tokens in their wallet.
Users can also view all their transactions and see where they collected Street Credit.