Dogo - Positive dog training, make learning tricks fun
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
DogBuddy - Find dog walking, dog sitting and dog boarding near you
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Poopz - Uber for dog poop
OwnTracks - Cross-platform location sharing