Mijireh Checkout provides a fully PCI Compliant, secure way to collect and transmit credit card data to your payment gateway. Supports for over 80 payment gateways in more than 50 countries.
Single Page Checkout (SPC) is Add-on for WP-Invoice makes it easy to create stand-alone checkout forms on your site. That form can contain a list of Predefined Line Items of your choice, or open items (custom amount entry). Other features include processing fee calculation, custom user information capture, multiple items, and more.