Keep this handy companion app on your iOS devices. If you ever find your walking exercise is getting bored - Walking Companion App is your best friend. It will entertain you with your favorite music and will also let you know the number of steps you have walked and may also know the history of your walk daily/weekly/monthly. It allows you 2 features to play the music:
Walk = entire song plays uninterrupted.
Run = Music starts/Stops if you dont keep moving.