If you’ve already added “run a 5K” to your list of New Year’s resolutions, then this is the app for you. Couch-to-5K ($1.99), from Active.com, provides all the necessary tools to transform a couch potato into a lean, mean, marathon-running machine. It comes equipped with training plans from active.com trainers and virtual coaches to keep you motivated. Users can also calculate running distances, map routes, log workouts and listen to playlists with the in-app music player.
