https://support.apple.com/en-ke/108302 https://support.apple.com/en-ke/108302 iOS has a "Time Sensitive notifications" type that will popup immediately, even w

https://support.apple.com/en-ke/108302 https://support.apple.com/en-ke/108302 iOS has a "Time Sensitive notifications" type that will popup immediately, even when user assign the app to summary view. But the type is assigned by sender alone. It is still possible to spam it.