New here and my next mod is going to be a good GPS and/or trail GPS app. I've been doing it old school for a while with topo maps and what not but think it would be good, and a bit easier, to get a good gps or a good app for it. I've tried googling it but all the treads I've found are at least a couple years old and 2 years later tech can change quite a bit.

So my question is what are you running? What do you like and what have you run that you didn't like?
I'd definitely like a app/gps module that works without cell signal as I don't think i've ever wheeled where there was cell signal, and that has the option to leave bread crumbs.
I have a Nexus 7, iPad and iPhone 6. All of which have built in GPS chips that work without cell signal as long as the map if preloaded.

Thanks guys!