I am thoroughly happy with the BarkCam app. It contains a range of sounds to attract your dog’s attention – a squeaky toy, keys jangling, a cat, and more.
I’ve been using the app for a couple of weeks now to snap photos of my massage clients. They are turning out great!
BarkCam is a free app for Android and iphone.
Highly recommended (this is an unsolicited endorsement)
Kathleen Crisley, specialist in dog massage, rehabilitation and nutrition/food therapy, The Balanced Dog Ltd, Christchurch, New Zealand
DoggyMom.com 
Sweet I have to have it
You won’t regret it