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I would like to know if there are alternatives for sending push notifications without using Firebase (Google).
The goal is to send push messages as simple notification or type containing JSON data, from a server, with system developed in PHP, to client devices (Browsers or Smartphones).
There’s an Amazon, I don’t remember the name and I don’t remember if it works for Browser. You can also try to make your own solution based on asynchronous calls from a web page being made on background, but I don’t recommend doing this in production; I would recommend making a home-made solution if you want to find out how it works (so test and not produce) or if you want to make a competitor to FCM
– Jefferson Quesado
Note that for iOS you need to talk to APN, which is a world apart is that FCM offers an abstraction layer regarding this
– Jefferson Quesado
Thank you @Jeffersonquesado , very enlightening.
– George Tavares