WatchDog

Designed for dog owners, Watchdog is a location-based utility for iPhone that keeps track of how long you’ve been away from home, and thus how long since your dog has gone outside. Watchdog’s timer starts as soon as you leave home (using a geofence) and you can configure notifications to alert you one hour before you’re supposed to return home, at the max time, or every 15 minutes after. I wish I had this app when I was house training my puppies last year. Dogs are good and should never be left alone, but if you must, you should consider this app.