The 1 CART shopping cart supports PayPal Standard, PayPal Express Checkout, PayPal Advanced, PayPal Payflow Link, and PayPal Payments Pro solutions.
It is the easiest in use and setup solution from PayPal. In addition to regular payments within PayPal accounts, this methods also allows users to pay by credit card without having them to create a PayPal account.
PayPal Express Checkout
It's more advanced solution by PayPal. It provides an alternative checkout process for your The 1 CART store.