Is it an app you developed ?
If so, you are the best placed to know what your app does.
Or do you use third party services for which you wonder if they do so ?
BTW, I know Lyft but not under. Do you mean Uber ?
I think he must be a user who wandered into the developer forums by mistake, wanting to know if an app he installed on his phone has GPS tracking. If so, he could look in the Settings app under Privacy > Location Services to see if the app is listed there.