We apologize the sample app is not yet available as anticipated -- please stay tuned as we expect it to be available soon in the developer documentation for Object Capture.
Supported devices for the guided capture UI are listed in the session video and include the iPhone 12 Pro (w/ LiDAR) and newer as well as the LiDAR-capable iPad Pro (3rd generation) and newer. We recommend that you check the ObjectCaptureSession.isSupported on a given device before trying to make a session to see if a device is supported. (Note simulator is not supported.)
The ObjectCaptureSession utilizes only the back-facing cameras and LiDAR.