Make sure you add the SHA1 key from Play Console to your app in the Firebase Console.
Read moreHow do I authenticate Firebase in flutter?
Implementing Firebase Authentication in a Flutter app
Read moreHow do I know if my Firebase is authenticated?
“firebase auth check if user is logged in” Code Answer
Read moreWhat is Firebase used for in Android?
The Assistant tool window in Android Studio. Firebase is a mobile platform that helps you quickly develop high-quality apps, grow your user base, and earn more money . Firebase is made up of complementary features that you can mix-and-match to fit your needs, with Google Analytics for Firebase at the core.
Read moreWhat is Firebase Auth?
Firebase Authentication provides backend services, easy-to-use SDKs, and ready-made UI libraries to authenticate users to your app . It supports authentication using passwords, phone numbers, popular federated identity providers like Google, Facebook and Twitter, and more.
Read moreIs Firebase phone Auth free?
All other Firebase Auth features are free to use on all plans .
Read moreHow do I get Firebase Auth?
Get Started with Firebase Authentication on Websites
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