From iPhone Development Wiki

Useful resources for developing with Bluetooth private frameworks on iOS:

  • BTstack - alternative Bluetooth stack for jailbroken devices, with SDP, RFCOMM, and, L2CAP APIs.
  • BeeTee - Demo application for bluetooth device scanning using the iOS private framework "BluetoothManager". (iOS 7 compatible)
  • Bluetooth Toggle - Uses iOS private framework "MobileBluetooth" to register and use lower-level Bluetooth calls (NOT iOS 7 compatible out of box).
  • iphone-bluetooth - Useful info on using private framework "MobileBluetooth" for iOS 5/6 bluetooth monitoring, scanning, or development; also is a daemon to control native iPhone stack.
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