This is the app you've needed – RunGo - The Best Routes to Run Review

Look up, or design from scratch, a route, and receive turn-by-turn cues. So simple, so useful. I'd give six stars if that's a thing you could do. Seriously. This is exactly what every runner needs, with an added bonus that the humans behind it provide prompt & cheerful support.
Review by Cowp on RunGo - The Best Routes to Run.