Beecon is one of the first universal iBeacon apps that allow you to detect, manage and range the beacons around you. The app, created by Beacon Sandwich, is fully compatible with Estimote Beacons and it's available on the App Store for free.
You can create different zones by simply sticking our beacons around your home, office, car or any other place and define actions that are triggered once you enter or leave a beacon zone.
Watch a short video to see how it works:
Here is an example of great combination: Estimote + PhilipsLight + Beecon 
More information on www.beaconsandwich.com.