A trial version is a version of a product that is available for free or at a reduced cost, usually for a limited period of time. It is typically used to allow potential customers to test the product before making a purchase. The two most common types of trial versions are demos and betas. A demo is a fully functional version of the product that is available for a limited time, usually 30 days. A BETA is an early version of the product that is still in development and may contain bugs or other issues.