I bought this Bluetooth for $10 bucs from Amazon and it's great. Apple IOs capadable. A good app is BLE scanner for Iphone by bluepixel tech. if you just want Ibeacon try Air Tracker by maplelabs and Blue Fruit LE by Adafruit. Just pair it up with a Silabs or FTDI USB serial and setup the command mode. Realterm works pretty good for setup.