AR Foundations is a powerful framework used to build augmented reality (AR) applications that work seamlessly across multiple devices and platforms. It provides a unified set of tools and APIs that simplify the development process by abstracting the complexities of different AR hardware and software environments. With AR Foundations, developers can create interactive experiences that blend digital content with the real world using features like motion tracking, environmental understanding, and light estimation. It supports key AR functionalities such as plane detection, image tracking, and object placement, enabling rich, context-aware applications. Often integrated with game engines like Unity, AR Foundations helps developers rapidly prototype and deploy AR apps on devices like smartphones, tablets, and AR glasses, making it a popular choice for creating immersive and engaging AR experiences.