title: Specify different email address for Test Flight?
body: <p>I want to specify a different email address for Test Flight. The iOS app appears to assume a particular Apple ID:</p>
  
  <p><img src="https://i.stack.imgur.com/NeXQE.png" alt="enter image description here"></p>
  
  <p>I went to <em>Settings → iTunes &amp; App Store → Apple ID</em> and changed the ID to the test flight email I want to use. But that's not working (its asking me to sign in, which won't work since this is a throw away test flight email address).</p>
  
  <p>The device I use is used by other folks, so I really don't want my Apple ID on it.</p>
  
  <p>How do I specify an alternate email address for testing?</p>