title: "Time on site" of apps
body: <p>I've been using Google Analytics very successfully for measuring apps. We learn a lot from the data. There's just one thing that I can't find any information about and that's the metric 'time on site'. It does measure something, but in my opinion time is often too long for average usage.</p>
  
  <p>Can anyone explain to me if these data mean:</p>
  
  <p>the time:</p>
  
  <ul>
  <li>from opening app till <strong>going to background</strong></li>
  <li>from opening app till <strong>really terminating</strong></li>
  <li>Something else?</li>
  </ul>
  
  <p>Many thanks in advance!
  Greetings from Holland,</p>
  
  <p>Sonja Kamst</p>