This article explores the transformative technologies of Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR). It defines each technology, highlights key differences, and delves into their applications across industries such as entertainment, healthcare, education, retail, and the workplace. The article also discusses the future potential of AR, VR, and MR, including advancements in hardware, AI integration, and their widespread adoption. These immersive technologies are reshaping how we interact with the world and are poised to revolutionize various sectors.