BT stack is divided for General-Purpose and Embedded-System by application, and most of them must be used by licensing.

First, there are “Widcomm, Microsoft Windows Stack, EtherMind stack, Toshiba stack, BlueSoleil stack” for Windows OS and “BlueZ” for Linux OS in use of General-Purpose.

In addition, there are BlueMagic, BCHS, IwBT, Windows CE, BlueLet, ClarinoxBlue, Symbian OS stack in use of Embedded-system.