title: Unity API to convert in-game currency to real money and give to player
body: <p>I have an unity mobile game where players can earn in-game currency from other players and I want them to be able to exchange that currency for real money. Currently we wanted to use Playfab for that but I can't find any option to convert the currency. The system should do the followings: </p>
  
  <ul>
  <li>allow players to purchase currency with real money </li>
  <li>allow players to shop items via that currency</li>
  <li>allow players to give currency to other players (earn it from other players)</li>
  <li>allow players to exchange any amount of owned currency back to real money via google play or app store (if it is possible to use them)</li>
  </ul>
  
  <p>If Playfab can't do that is there any other service or API that would allow us to implement this? Thank you in advance</p>