iBeacon is the Apple Trademark[1] for an indoor proximity system[2][3][4][5] that Apple Inc. calls "a new class of low-powered, low-cost transmitters that can notify nearby iOS 7 devices of their presence."[6] The technology enables an iOS device or other hardware to send push notifications to iOS devices in close proximity. Android operating systemdevices can receive iBeacon advertisements but cannot emit iBeacon advertisements (ie. central role only[7]).[8]
The iBeacon works on Bluetooth Low Energy (BLE), also known as Bluetooth Smart. BLE can also be found on Bluetooth 4.0 devices that support dual mode.[9] One potential application is a location-aware, context-aware, pervasive small wireless sensor beacon that could pinpoint users' location in a store: iBeacons could send notifications of items nearby that are on sale or items customers may be looking for, and it could enable payments at the point of sale (POS) where customers don’t need to remove their wallets or cards to make payments. It could be a possible Near Field Communication (NFC) competitor.[citation needed]
It uses Bluetooth low energy Proximity sensing to transmit a Universally unique identifier[10] picked up by a compatible app or operating system that can be turned into a physical location[11] or trigger an action on the device[12] such as a Check-in on social media or a push notification.
Various vendors have made hardware iBeacons that come in a variety of form factors. This includes small coin cell and AA powered devices, USB sticks, and software versions using Bluetooth 4.0 capable USB dongles.[13]
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