APP Application software of a mobile device. This could be a smartphone or a tablet.
AR• Augmented Reality
creates a layer of virtual reality over the real world environment using a computer generated sensory input through a GPS enabled application that can be sound, video or graphics.
ARGAn alternate reality game (ARG) is an interactive narrative that uses the real world as a platform and uses transmedia storytelling to deliver a story that may be altered by participants' ideas or actions.