Authenticating the user identity using the users mobile phone number is referred to as Phone Authentication. This verification method is very secure. because when we enter our phone number the phone number is verified in the first step and if the phone number is correct or exists then only the OTP is sent to the respective mobile, after the verification of the OTP only the users are allowed to access the app data.

Table of content

1. Installing dependencies
2. Connecting app with firebase & Enabling phone auth
3. Verifying phone number
4. Signing in using OTP
5. SignOut
6. Managing the UI using the auth state
7. GitHub Link

#phone-authentication #flutter #flutter-widget