Draw a value rather than a cube - ARToolKit iPhone

I start by saying that I don't know OpenGL (I just followed some tutorials). I'm working on a demo application that uses ARToolKit . Basically if the marker is detected I need to display some data (just a numerical value) that I receive from the web. I have already looked at the ARApp example and I'd like to s开发者_开发百科ee the numerical value on each(or just on top) surface of the cube, or even the value in 3D instead of the cube. I found this tutorial(ideal for my case) but it is in C++, uses a class that allow you to render strings in 3D. Does anyone knows a way to use it in iOS, or at least some input on what can i integrate/use to draw a value rather than a cube?

Libraries, links and any references are appreciated. Thanks in advance