Are there simple easy to use computer software to help in designing your rough-in for plumbing pipes?

There has to be a simple program to help the homeowner design a sewer and waste rough-in for a house. exclude using a CAD program which one has to know how to use and is very very costly. Im looking for a program that will give you a general idea of how to lay out your plumbing under a slab before it is poured. something that will generate a materials list so you know what to purchase.