To turn off notifications on Apple Devices, go to Settings > Notifications, and select the app apps you would like to change notifications for. For more information on Apple device notifications, please visit: https://support.apple.com/en-us/HT201925
To turn off notifications on Android Devices, go to your device Settings > Sound > Apps > and select which apps you would like to change your notifications for. For more information on Android device notifications, please visit:
To change your settings, open your Facebook account and, in the top right, click the drop down menu, then Settings > Apps > and search for Juice Jam. From here, you can modify your settings of how you would like to share your information with your Facebook friends.