My app needs to receive silent notification from backend even when it's forced quit...
This was a common request: Handle remote notifications when app is killed
Silent and VOIP notifications as well as playing silent audio were techniques used to bypass the user's intent and platform APIs. As can be seen with the iOS 15 Focus and notification updates, Apple is making it easier for users to control how and when our apps interrupt the user.
It's best to redesign your notification experience based on the updated Human Interface Guidelines for Notifications and drop the silent-local notification two step shuffle.
Topic:
App & System Services
SubTopic:
Notifications
Tags: