By Ole Begemann More about me and contact info April 29, 2013 Last update: April 30, 2013 With the iOS 5 SDK, Apple introduced the Core Bluetooth framework. Core Bluetooth allows developers to write apps that talk directly to hardware gadgets or other iOS devices1 using the Bluetooth Low Energy (LE, also called Bluetooth Smart) standard. Update April 30, 2013: Things work differently for Bluetooth