A simple app that draws 3D graphs. The free version supports graphs in the form y = f(x y) but the paid version supports other forms including functions in cylindrical and spherical polar coordinates parametric surfaces and parametric curves.

Features
- Graphs can be drawn as a smooth-shaded lit surface or a wireframe.
- Displays up to 8 graphs simultaneously.
- Choice of perspective or orthographic view.
- Touch to rotate pinch to zoom.
- Customizable colours for graphs and the graphing axis.
- Both trigonometric and hyperbolic trigonometric functions and their inverses are included.
- Graphs can be saved to a separate list for later use.