Push notifications enable apps to reach out to users with short messages that users may respond to. iOS 11 and Later & iOS 12 (without Provisional Authorization): The native Push notification prompt appears for new users to an application. whatsapp push notifications not working on iPhone 6, 7 and 8, How to fix WhatsApp or Facebook push notifications not working on iPhone X, XR, XS and XS Max.
Ios 13 register for push notifications With the release of iOS 13, Apple has changed the internal mechanism of push notifications.