What are some alternatives?
When comparing Shopify Plus and FastSpring, you can also consider the following products
BigCommerce - BigCommerce provides ecommerce software solutions and shopping cart software for online businesses. Try it free and start selling your products online today!
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
EcWid - Ecwid E-commerce Shopping Cart is Fast and Easy to Use! Works with Wordpress, Drupal, Facebook and Much More! Start Selling Fast Online Now with Ecwid.
Magento - Magento is the eCommerce software and platform trusted by the world's leading brands. Grow your online business with Magento.
Avangate - Avangate provides software and SaaS companies with rich eCommerce, partner management solutions and an affiliate network, assisting them to sell software online as well as to manage a global scale with localized shopping, payments, support.