And compared with Tango, Tango has more features than ARKit. But not everyone would like to buy a Tango just for AR, except for developers lol. Just use ARKit, you can not do multi-user AR, depth-AR and model-based AR, and it dose not support android obviously. And I can do that with mine. Besides, combine with ARKit, I can do better, some features ARKit can do but not mine. It’s good for me and I am trying to make good use of it.