title: Firebase / iOS & push app server: Are there any service providers?
body: <p>I want the users of my app to be notified about new chat messages. Apparently clients cannot send push notifications with Firebase. As far as I could understand I need another server for this (so called <code>appserver</code>?). </p>
  
  <p>This is quite a bit of disappointing because I assumed that with the relaunch of Firebase client initiated push would work without 3rd party services. Am I wrong or is this currently not possible with Firebase? If it is not possible, what are recommandable services? Would <code>parse push server</code> work with Firebase?</p>