Is GCM (now FCM) free for any limit?

Question

I would like to know if Firebase Cloud Messaging is free or not for unlimited users?

Answer 1

You can refer to the official Firebase Pricings page. From there you will be able to see the types of projects that are available: SPARK, FLAME, BLAZE, to which all of them have FCM (along with Analytics, App Indexing, Authentication, Dynamic Links, Invites, Notifications, Crash Reporting & Remote Config) included for free.