It could also possibly work on iOS, but there's a catch we have not yet explored. We're relying on something called the "confidence" score in the ToF camera API, which has 8 possible values (3 bits) in Android, but from what I last saw, has only 3 possible values total in iOS. It's not clear how this lack of info exposed by the APi will affect accuracy.

This is something we'd have to separately test, and ultimately make a wholly different app for if it's feasible on iOS.