Natural user interfaces (NUIs) are interfaces that allow humans to interact with computers using natural actions and gestures, such as touch, voice, and body movement. NUIs are used in many applications, such as virtual assistants, gaming, and education. Popular NUI platforms include Microsoft Kinect, Apple Siri, and Amazon Alexa. Discover more Augmented reality (AR) is a technology that overlays digital information onto the real world, typically experienced through a smartphone or other wearable device. AR is used in many applications, such as gaming, advertising, and education. Popular AR platforms include Apple ARKit, Google ARCore, and Vuforia.