Some limitations you can find with Firebase are Firebase Authentication Limits and Phone number sign-in limits. However the alternative solution is using third-party SMS gateway. through with you can send OTP to phone number as well as to email also simultaneously.

Apr 26, 2025 · Firebase Authentication uses Firebase Hosting to send the email link to a mobile device. For sign-in completion via mobile application, the application has to be configured to detect the...

Aug 21, 2022 · Service-access permissions are configured using a mechanism called Firebase authentication. This is accomplished by using Google’s Firebase APIs and Firebase console to create and manage legitimate user accounts. You’ll discover how to integrate Firebase authentication into an Android application in this article. Step By Step Implementation

Oct 4, 2022 · Firebase Authentication support OTP based authentication for phone numbers only. The email equivalent would be to use email link sign in. Once user enters their credentials, check if it is a valid email or phone number and call the relevant function.

Feb 20, 2025 · Select Email/Password under Sign-in method > Native providers. Enable Email/Password sign-in and click on Save. Step 3: Add Firebase Authentication SDK to your project. Go to Tools > Firebase which should open the Firebase Assistant tab. Then Select Authentication > Authentication using Google.

Feb 24, 2022 · Yes absolutely it is possible, use both authentication method one by one (email first then phone OTP) and while registering after creating user with email and password and sending otp to the user, instead of doing createUserWithCredentials use linkUserWithCredentials.

Apr 22, 2025 · To protect your project from abuse, Firebase limits the number of new email/password and anonymous sign-ups that your application can have from the same IP address in a short period of time....

Aug 29, 2021 · Firebase authentication is a technology used to set up service-access permissions. It does so by creating and managing valid user accounts using firebase APIs and Firebase console provided by...

Mar 13, 2025 · In this tutorial, we will explore how to integrate Firebase Authentication into an Android application. Firebase Authentication provides a comprehensive solution for user authentication, supporting multiple sign-in methods such as email/password, Google Sign-In, Facebook, and more.

Jan 6, 2025 · Firebase provides so many ways for authentication users such as Google, Email and Password, Phone, and many more. In this article, we will take a look at the implementation of Phone Authentication inside our App using Firebase. What we are going to build in this article? We will be creating a simple application which is having two screens.