Cape Soya → Shuri Castle
Japan Walk Nomad moves you across a real map exactly as far as you have walked. Pass famous places, collect badges and hear local comments from your guide Arukyun. Hokkaido is free to explore, with a one-time upgrade for the whole route.
The app and its website are available in English and Japanese. The full details, screenshots and FAQ for Japan Walk Nomad are on its own site.
Looking for another country? See the Walk Nomad series for the UK, Ireland and Italy.