You can send SMS Verification using Firebase and you cannot send ordinary SMS through Firebase . You can send using Twilio instead.
Read moreIs Firebase free for notification?
Send messages to any device Firebase Cloud Messaging (FCM) provides a reliable and battery-efficient connection between your server and devices that allows you to deliver and receive messages and notifications on iOS, Android, and the web at no cost .
Read moreWhat type is Firebase?
The Firebase Realtime Database is a cloud-hosted NoSQL database that lets you store and sync data between your users in realtime.
Read moreHow many types of Firebase are there?
Using Firebase Cloud Messaging, we can send three types of messages , i.e., Notification Message, Data Message, and the message with both Notification & Data Payload.
Read moreHow do I send notifications on flutter?
How to Add Push Notifications to a Flutter App using Firebase Cloud Messaging
Read moreHow do I send FCM notifications to a specific user?
The rest of this post is about how you can do this using only Firebase.
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