New smartphone app "Walk for a Dog" donates to an animal shelter of your choice every time you walk your dog.

Since, for most dog owners who walk their pets, that means daily, how could one say no?

All you have to do is download the app for free on Google Play or the Apple App Store. When you set out for a walk with your best furry friend, just turn it on, and the app will track your progress based on runtime and distance traveled.

Based on that info, "Walk for a Dog" developer WoofTrax donates to a shelter of your choice, including the Central Dakota Humane Society.

CDHS isn't the only benefactor; you can set any of a number of shelters as your default recipient of donations.