The PayPal payment plugin include 4 products :
What is the difference between the PayPal products?
PayPal Standard is the basic PayPal payment solution. It is an easy solution, to start selling with your website.
It is free to open an account on PayPal, and PayPal charges a fee for every transaction which varies from country to country.
PayPal Payment Pro
With this PayPal Payment Pro, the merchant can accept credit cards on his website, without the customer knowing that PayPal is being used.
PayPal Hosted Pro
Hosted Solution offers merchants an easy and faster way to add transaction processing to your website. It is a secure, PayPal-hosted, web-based payment solution that allows you to securely send your buyers to PayPal’s payment page to authorize and process transactions.
Buyers pay with a debit or credit card, or their PayPal account and merchant do not have to capture or store credit card information on your website, thereby helping towards achieving PCI compliance.
Hosted Solution is the choice for merchants who prefer a solution where all financial details are handled by PayPal.
With PayPal Express Checkout, your customers can complete transactions in very few steps. It lets them also to use the billing and shipping information stored at PayPal for the checkout. With PayPal Express Checkout, payments by credit card or from a PayPal account are accepted.