Hey, mamalynn! I feel awful that I'm about to go 0 for 2 in this reply, but we don't retail any Heads Up display equipment, so I honestly don't know much about how they work, and I don't see any info about this called out in any of the support documents we have. Would the app need to be developed in any certain way for compatibility with the display? Secondly, I've never used a Heads Up display (although they look super cool!) so I don't have any recommendations to offer as far as best device platforms.
I'm going to unmark the post as a question in the hopes that if it lives a little longer on our Community, another member will be able to chime in here with some personal experience! Sorry we can't be of more assistance!
Manage your T-Mobile account