Try out the Micro-Location features of Geofancy by using this Sample App. Just use the preset UUID and chose it in Geofancy and start using micro-locating using your simulated beacon.
This App is compatible with iDevices starting from iPhone 4S (Bluetooth 4.0 LE)
Get Geofancy for free in the App Store.
The Geofancy Beacon App is Open Source, find its source code at https://github.com/Geofancy
iBeacon is a Trademark of Apple.