ARtoolkit Example For Unity Won't Work on iPhone

I'm having trouble building any ARtoolkit examples from Unity5.5.2 to IOS through Xcode. There are no problems when I build a standalone scene for OSX. But when I create an Xcode project and build to my iPhone6s (following all these steps https://artoolkit.org/documentation/doku.php?id=6_Unity:unity_on_ios) the cube is not displayed as is is on a standalone build for the "SimpleScene" in ARtoolkit Examples. Any help is much appreciated!