GGR writer (and certified personal trainer) Anthony O’Reilly really knows his stuff when it comes to walking. Here are his top picks for the best walking apps: - Best Overall Walking App: Strava - Best Walking App for Workouts: iFIT - Best Walking App for Motivation: Fitbit - Best Walking App for Accountability: Nike Run Club - Best Walking App for Tracking Metrics: MapMyWalk - Best Walking App for Apple Watch: Apple Fitness+ - Best Walking App for a Cause: Charity Miles