That might be something you will have to try yourself and report back. See the response by Glock 21 at this link:
https://www.smokinitforums.com/index.php?topic=8395.msg72726#msg72726
Yes, and I can update settings while out of the house as well if I want to crank the temp up some to speed up the cook. Basically the app works the same from house or when I am away.