Bluestacks, the first app player for running Android apps on Windows, has launched the latest version of its Android emulator platform with one major upgrade: The Ability to Run Multiple Android apps Simultaneously. BlueStacks previously only run a single app at a time. The update also adds a toolbar that allows you to quickly tell the Android emulator to simulate rotating the device screen or to perform other functions, such as copying and pasting. BluStacks has crossed more than 109 million app downloads, engaging more than 1.1 billion Android apps every month.
Source: https://thehackernews.com/2015/12/run-multiple-android-apps.html