ShelfX Is the Mobile Self-Checkout and Inventory Management Solution for Your Retail Store With ShelfX, there is no such thing as a line. Customers enter the store, shop for their products and leave. But in between, something revolutionary happens. This mobile self-checkout solution greets customers by name, tells them what they have purchased, offers discounts and additional suggestions based on their customer profile, and processes their payment. ShelfX makes all of this happens while helping venders efficiently track inventory and stock merchandise in your store. Many years ago, shopping was simple. A customer would walk into a store, be greeted by name by a familiar face, and told about the latest specials. ShelfX is the twenty-first century version of shopping simplicity.