This app will use Firebase Realtime Database to store all chat messages . Before we add data, though, we should make sure that the app is secure and that only authenticated users can post messages. In this step, we will enable Firebase Authentication and configure Realtime Database Security Rules.
Read moreIs Google push notifications free?
Firebase Notifications is a free service that enables user notifications for Android and iOS devices.14 Haz 2016
Read moreIs Google Firebase messaging free?
Yes. The usage of Firebase Cloud Messaging is free .
Read moreIs FCM always free?
As per the current documentation, the Cloud Messaging Service (FCM) is free with no limits .
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