title: Definition of Phone Auth Firebase
body: <p>I created an app as a hobby using firebase and I found that it actually might be a nice app so I continued to work more seriously on it.</p>
  <p>When I started checking the pricing of firebase I saw that in the authentication section it says:</p>
  <p><a href="https://i.stack.imgur.com/83wAh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/83wAh.png" alt="enter image description here" /></a></p>
  <p>I use in my app things such as <code>Auth.getUid()</code> and <code>auth.signInWithEmailAndPassword( email, password )</code></p>
  <p>From what I understood, every time a user sign-up to my app by using the <code>signInWithEmailAndPassword</code> I will need to pay 0.06$.</p>
  <p>On the other hand, in their site, there is an example of pricing and it says there:</p>
  <p><a href="https://i.stack.imgur.com/Ctkzm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ctkzm.png" alt="enter image description here" /></a></p>
  <p>Can someone please explain to me what is the definition of verification as it is mentioned in 0.06$/verification?</p>
  <p>Couldn't find something understandable on their page.</p>
  <p>Thank you</p>