title: How many users have push notifications enabled?
body: <p>I have a SAAS product with many users. iOS + Android app.</p>
  
  <p>1) Is there a way to check how many of them have push notifications enabled?</p>
  
  <p>2) Can I programmatically check if they have push enabled? And if not, then I want to trigger alternative communication. </p>
  
  <p>Questions apply for both iOS and Android.</p>
  
  <p>Thank you.</p>