title: Unity: Stay logged in on mobile devices
body: <p>I am kinda new to Unity. I am currently developing my first game for IOS and Android. I am at the point where I want my users to sign up and log in. I'll store their data inside a mysql database. That works fine. However, I lack some basic knowledge on that procedure for mobile apps in general.</p>
  
  <p>If a user signs up and logs in and closes the app, how do I handle his session? In games like Clash of clans, you basically sign up once and stay logged in forever with your mobile phone even if u delete the app and download it again.</p>
  
  <p>How is that handled inside mobile apps by Unity? In PHP, I would simple use a session and/or cookies to achieve that. But as I said, I lack some basic knowledge on how that is done on mobile games.</p>
  
  <p>Basically, I want to know on how to distinguish players by their IDs and make them sign up once with their phone and stay signed in forever, at least as long as they don't log out. How do I create these sessions?</p>
  
  <p>Any help would be appreciated.</p>
  
  <p>Have a nice day!</p>