Zen Cart is built on a foundation of OScommerce GPL code, Zen Cart an easy-to-setup and run online store. Zen Cart is for selling online. Zen Cart is completely customizable e-commerce. Some shopping cart solutions seem to be complicated programming exercises instead of responding to users' needs, Zen Cart puts the merchants and shoppers requirements first. Similarly, other shopping cart software programs are nearly impossible to install and use without an IT degree, It can be installed and set-up by anyone with the most basic web site building and computer skills.