title: Tracking iPhone Data Usage
body: <p>Can someone please help me how I can get the Data Usage from WWAN and WLAN with Swift?</p>
  
  <p>I found on Stack Overflow how to do that in Objective-C but an explanation would be nice!</p>
  
  <p><a href="https://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring">Here is how to do that in Objective-C</a>.</p>