Yea I'm familiar with the Find Me app but i don't think it works with phone calls or off your phone directory. In fact, i just checked my phone directory and i don't see a 'share my location' however i do on the find me App. I don't think Find Me provide a bread crump option like the Rino. I've used the Garmin Rino's but never through a repeater. The Rino has a bread crumb feature but you have to upload through their map program, i forget what it was called. I remember it was kind of a pain.. The phone app we used (i think it was Log GPS) was pretty cool, we used it at work for a ton of things, even for logging USA fiber routes. It tied into your camera and you phone log. The app we used was somewhat custom also, It has an option. if you are code savvy, to write some of your own parameters. ... We had someone that did that for us.