iOS - Ask to enable push notifications after initial decline

You can't make iOS show the alert again. Here's a better approach:

1. Keep a flag in your NSUserDefaults indicating whether you should register for push notifications at launch. By default the flag is false.
2. When you launch, check the flag. If it's true, register immediately. Otherwise, don't register.
3. The first time the user does something that would cause a push notification, register for push notifications and set the flag in NSUserDefaults.

This way, when the user gets the push notifications alert, he has some idea why he's getting it, and might actually say yes.

I am also facing a similar kind of issue. After searching so much, I decided to do what you call Plan B. That is, show the user my own alert saying that push needs to be enabled for better experience, or something like that.

To check that required push types are enabled, use this method:

- (UIRemoteNotificationType)enabledRemoteNotificationTypes

UIApplication reference

I think that this is the clean solution. Consider a case where after accepting the request at first, the user turns off push, this thing will work even in that scenario.

The best way to do it would be to (if you're making a game) ask them a preemptive question (e.g. Do you want us to notify you when your crops are ready to be harvested? -Yes -No), and when they answer "yes", then fire the native iOS push popup. then you can layer in multiple questions along the user funnel, and you'll eventually catch them all.