DogWalker is an app where you can find all those around you who want to help you when you do not have time for walking your dog.
You dont have a dog? No problem! Create a profile and tell the dog owners that you want to babysit their dog - either when they do not even have the time in everyday life, or when they are on holidays.
Whether you want to walk/sit dogs for free or to charge, is up to you.
Enjoy :)