Nabu Casa Account - Mobile Connection


I signed up for a Nabu Casa Account and I was hoping this would give the iOS companion app the ability to work away from home and off the Wifi. When on mobile data i am unable to use the iOS app. Am i doing something wrong? or is there another step i need to get this working?

Thanks in advance

Not to worry got it working now.

Changed the Internal URL to my internal HA and the external to the Nabu Casa URL. All connected now.