title: Django invite code app recommendation?
body: <p>I'm looking for a simple Django app that restricts registration to users who have an invite code (for running a private beta). I'm using django-registration, so something that plays nicely with it would be great. </p>
  
  <p>Looks like there are several viable options:</p>
  
  <p><a href="https://github.com/muhuk/django-inviting" rel="nofollow">django-inviting</a><br>
  <a href="https://github.com/pragmaticbadger/django-privatebeta" rel="nofollow">django-privatebeta</a><br>
  <a href="https://bitbucket.org/lorien/django-invite/src" rel="nofollow">django-invite</a></p>
  
  <p>Given the wealth of options, I'm wondering if people have found a particular app more flexible and/or easier to work with than the others? Are there other apps that I should be aware of?</p>