Often we get calls to pick up lost/found dogs. Unfortunately because the dog has no chip or collar with a tag, we have to turn the animal over to the County Animal Services and the dog goes to doggy jail for a short time- or longer. Here is an app that County Animal Services recommends (in addition to licensing your dog and adding a chip). It uses facial recognition for your dog. You load it on your phone.
Check the link below!
Finding Rover
http://www.findingrover.com/