https://apps.apple.com/us/app/nuitrack/id1476531924 3
This app need for developing apps with Nuitrack functionality https://github.com/3DiVi/nuitrack-sdk/tree/master/iOS-beta 1
If you run test in this app, you can see rgb stream, depth stream, user tracking (silhouette), skeletal tracking and hand tracking
What sensor do you use?