Here’s a video I shot to explain Firebase Cloud Messaging (FCM), explaining in just over a minute how it works and how you can make the most of it.
FCM is a cross-platform messaging solution that lets you reliably deliver messages at no cost. Using FCM, you can notify a client app that new email or other data is available to sync. You can send notification messages to drive user reengagement and retention. For use cases such as instant messaging, a message can transfer a payload of up to 4KB to a client app.
It’s built on an amazingly scalable infrastructure that delivers hundreds of billions of messages PER DAY.