A free app for Android, by 30 Days Fitness.

Dog Breed Scanner-Dog Breed Identifier by Picture is a completely free, offline, and easy-to-use dog identification app for Android. It can recognize a variety of dog breeds, including Poodle, German Shepherd, Golden Retriever, Pomeranian, Boxer, Chihuahua, Australian Shepherd, Rottweiler, Doberman, Dachshund, Havanese, Shih Tzu, English Bulldog, Bichon Frise, Bullmastiff, Cocker Spaniel, Corgi, English Fox Terrier, Doberman Pinscher, Chesapeake Bay Retriever, Chihuahua, German Shepherd, Great Dane, Havanese, Shih Tzu, English Bulldog, Bichon Frise, Bullmastiff, Corgi, and more. You can also use it to find out which dog breed you look like.

The app uses an image-recognition algorithm to identify the dog breed. It is completely offline and does not need an internet connection. It is designed to be easy to use.