I am doing my first marathon very in 2 months. I have learned that some races have aps where people can track your progress. The race I am doing does not have that. I was wondering if there were any aps that would do any such tracking. Ideally so that my wife and kids know where I'm at on course and when I will be passing by as they want to move around and catch me a few times. I'll run with my phone so that I can see my splits afterwards.