A "free trial" is a promotional offer that allows users to access a product or service for a limited time without any cost. This period typically ranges from a few days to a month, giving potential customers the chance to evaluate the features and benefits before making a purchase decision. During the free trial, users can explore the full functionality of the product, such as software applications or subscription services like Netflix or Spotify. At the end of the trial, users may need to provide payment information to continue using the service, or they can choose to cancel without any charges.