How to change your notification settings
In the app go to Profile > settings. There you'll find notification settings for email and push notifications.
Change your push notification settings
Go to Profile ⇒ Settings ⇒ Push notifications and there you can set everything the way you want it.
With “Enable notifications” you can switch all push notifications on or off at the same time.
Change your Email notifications:
Go to Profile ⇒ Settings ⇒ email notifications and there you can indicate whether you no longer want to receive emails per categorie.