Discover how to build engaging ARKit apps in this 21-minute conference talk from try! Swift Tokyo 2019. Learn about challenges in AR app development, including performance optimization, virtual object positioning, and plane detection. Explore best practices for leveraging ARKit's full potential, ensuring smooth performance, and delivering polished user experiences. Gain insights on tracking quality, air experiences, occlusion support, distance support, frame rate considerations, and effective user feedback implementation. Presented by Namrata Bandekar, Principal Software Engineer at Zynga and co-author of ARKit by Tutorials, this talk provides valuable knowledge for developers looking to integrate augmented reality into their applications.