Enable Disable users' notifications

Hi,

I am using OneSignal in my app to send notifications to iPhone users.

Is there a way to give users the possibility to turn on or turn off notifications?

Thanks.

yes make a stored variable if they turn off from the app then store in the variable false and when you are going to send notification check if stored variable = false

I forgot to attach my current blocks:

If I change the iOS_AppID to an empty value, will it stop users from receiving the notifications?