From The Apple Wiki
The texture for the AR rocket model.

VIOSimple is an early AR demo for SwitchBoard devices that was first discovered on TigrisAni 15A93261h. It creates a rocket ship object when the camera is focused on a flat surface. VIOSimple also functions on stock versions of iOS 11.0 and above.

It is unknown what VIO stands for, possibly Visual Input/Output. A partial meaning is revealed in Info.plist.

   <string>The "V" in VIO stands for Visual.</string>