Beacons, not bacons. iBeacon is Apple’s form of the Bluetooth-based beacon concept, allowing Bluetooth devices to broadcast or receive tiny and static bits of data within short ranges. In simple words, it is made up of two parts: a broadcaster (beacon device) and a receiver (smartphone app). The broadcaster is constantly advertising “I am here, and my ID is…”, while the receiver picks up these Bluetooth radio packets and does whatever it ought to do depending on how close or far it is from them