Hi there. With the aid of a computer, designing paper models can become very challenging. Any modeler who uses a computer should have a preference for any graphic program until he or she feels very comfortable using it. But these programs can be very expensive, but the good thing is that there are other programs that can be available for free, too. The vector graphic program I widely use in my computer is Illustrator from Adobe. Now that computer tablets are becoming more mainstream, vector graphic design cannot be more easier. These tablet applications or “apps” as they are called, are more affordable than their PC counterparts, for a ridiculous price.
Here’s a list of three great vector drawing apps for the iPad that are compatible with Illustrator. They are very cheap in price but powerful in its features, like the real thing.