Firebase Cloud Messaging - Push notifications

Firebase Cloud Messaging service is a fine way to send notifications across platforms: iOS, Android, web. No extra fee is payable to the notifications provider. Other advantages of the Firebase system include greater reliability and a lower toll on the battery power.

This is the list of notifications that your site and app members will be receiving, even when the site and app are closed:

-someone sends them a new message
-someone is viewing their profile
-there is a new member who meets their search criteria
-a friend is online right now

You are welcome to order different types of notifications for both your site and mobile apps.