title: How often does Firebase phone authentication require verification?
body: <p>as of May 17, digits.com released a statement:</p>
  
  <p><a href="http://get.digits.com/blog/introducing-firebase-phone-authentication" rel="noreferrer">http://get.digits.com/blog/introducing-firebase-phone-authentication</a></p>
  
  <p>Stating that digits.com auth becomes obsolete and firebase takes over.</p>
  
  <p>Firebase description is other here:
  <a href="https://firebase.google.com/pricing/" rel="noreferrer">https://firebase.google.com/pricing/</a></p>
  
  <p>They state that up to 10k phone authentifications / month will be free of charge. </p>
  
  <p>Does anyone know if by single phone auth they mean an exact act of sending SMS or performing a phone call? </p>
  
  <p>Can it be that simple token refresh (after 24hours) will also be considered an phone auth request?</p>
  
  <p>Also, does that 10k requests also include already authenticated users or just new authetification actions that month?</p>
  
  <p>Thanks!</p>