3 terms
OpenXR is the royalty-free Khronos standard API that lets XR applications run on headsets from different vendors through one common interface.
visionOS is the operating system of Apple Vision Pro, built for spatial apps that use windows, volumes and immersive spaces with eye and hand input.
WebXR is the web standard that lets browsers run virtual and augmented reality experiences on XR headsets and phones using JavaScript, with no app install.