Originally Posted by jamesb6789
Thanks - can I do this with Tasker without rooting?
Yes I think so. In Tasker, set up a profile for your home wifi connected then create a task by going to Task > Net > Mobile Data > Set to OFF.
Make sure you have an exit task for this profile set for Mobile Data ON
(An exit task is a task that will complete when your primary profile task cannot be completed. In this example, when NOT connected to home wifi then turn Mobile Data on.)