I was not sure I would make use of an app like this in my workouts but I have become addicted. The story is compelling and I find that the minor inconvenience of looking at it every 20 minutes or so is really no issue. An improvement could be proximity auto-play. Not fun trying to move to the next audio clip in the snow or rain.
It does work better outside and that is a drawback during dark cold winter months when treadmills etc tend to get max use.
Overall, despite these small inconveniences I give it 4/5. Now, give us the rest of the episodes!
Jagran J about The Walk: Fitness Tracker Game, v1.0.1