What are some alternatives?
Gumroad - An all-in-one solution to sell your work and grow your audience.
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.
Sellfy - Sellfy is an easy to use but powerful e-commerce platform where you can sell digital, physical or subscription products. Use a Sellfy storefront to create a beautiful online store or embed a Sellfy shopping cart to your own website.
Magento - Magento is the eCommerce software and platform trusted by the world's leading brands. Grow your online business with Magento.
Payhip - Upload e-books and sell directly on Twitter, Facebook or your website! Sell your ebooks to your fans and followers and get paid instantly via PayPal.