📲 Why Your iOS Push Notifications Just Died: APNs Certificates vs. Keys

Cover image source: RDNE Stock project by RDNE If you've been building Flutter apps for a while, you know the sinking feeling of a QA report saying: "Push notifications stopped working on iOS." You check the code, and nothing has changed. You check Android, and it works perfectly. Then you log into Firebase and see it: The dreaded red box. Your APNs certificates have expired. In this article, we'll dive into the fundamental difference between APNs Certificates and Auth Keys, and why as a seasone