We recommend Spree Commerce – a fully featured and modular open-source eCommerce solution. Why Spree? Speed to market.
PayPal, Braintree, Mailchip, Sendgrid, Amazon – you name it, we can integrate it. Spree offers a complete API too for any other integrations.
We can easily perform customization of Spree Commerce to meet your design, checkout, promotions, user experience requirements.