title: Flutter - Get Unique Device ID
body: <p>I am making an app with token based system. So users can buy tokens and using them they can make some actions.
  Each user gets 10 tokens for free (as a trial version) after creating an account using email and password.</p>
  
  <p>I want to prevent that user gets another 10 tokens by getting a new account each time and I was wondering if there is something like unique device ID for both Android and iOS devices?</p>
  
  <p>Can I use this for that purpose? <a href="https://pub.dartlang.org/packages/device_id#-example-tab-" rel="noreferrer">https://pub.dartlang.org/packages/device_id#-example-tab-</a></p>