Any device screen can be accessed from any other type of supported device, for example, it allows you to access Windows screen on Android, Android screen from Windows or Mac, Android screen from another Android device, Windows screen from Mac and so on. The device that you want to access through MirrorOp is called sender (because it sends its screen). The device on which you access the screen of other device is called receiver (because it is receiving the screen of some other device). Consequently, you need to install the sender software in the sender device and receiver software in the receiver device.