Don't know, really. I've never really used computer systems for getting around. I've been driving so long that I'm still stuck in the good old days of reading maps, asking directions and guess-work. I was looking at a map once of Utrecht in Holland, trying to figure out where the industrial area was likely to be, and ended up driving round the university. A campus cop helped me out that day, basically so he could get my truck off his patch.
The apps I'm referring to aren't for navigation; more like, hey, there's a restaurant open 24 hours off this exit, or there's a Starbucks or a dog park nearby.