Binary Runtime Environment for Wireless was an application development platform created by Qualcomm, originally for code division multiple access (CDMA) mobile phones, featuring third-party applications such as mobile games. It was offered in some feature phones but not in smartphones. First developed in 1999, as a platform for wireless applications on CDMA-based mobile phones, it debuted in September 2001. As a software platform that can download and run small programs for playing games, sending messages, and sharing photos, the main advantage of Brew MP was that the application developers can easily port their applications among all Brew MP devices by providing a standardized set of application programming interfaces. Software for Brew MP-enabled handsets can be developed in C or C++ using the freely downloadable Brew MP software development kit (SDK). The BREW runtime library is part of the wireless device on-chip firmware or operating system to allow programmers to develop applications without needing to code for system interface or understand wireless applications. BREW is described as a pseudo operating system, but not a true mobile operating system. BREW was not a virtual machine such as Java ME, as it runs code natively.

Qualcomm Incorporated is an American multinational corporation headquartered in San Diego, California, and incorporated in Delaware. It creates semiconductors, software, and services related to wireless technology. It owns patents critical to the 5G, 4G, CDMA2000, TD-SCDMA and WCDMA mobile communications standards.