# May I suggest that you look at Apple's Human Interface Guide Lines for OS X and iOS versions of your FreeCAD Contributions?

Commenting post [512](/?blog/2018-512): May I suggest that you
look at Apple's Human Interface Guide Lines for OS X and iOS versions
of your FreeCAD Contributions?

These guidelines are more human-oriented than others that currently used
in FreeCAD. It is very easy to get lost in the very Complex and Powerful
application such as FreeCAD.