Spree Commerce is a free, open-source ecommerce solution that allows you to build an online store or a marketplace exactly the way you want it in every respect. There is no license cost of transaction fees with Spree. Unlike Shopify, which is a Software-as-a-Service offering, Spree is free of many SaaS limitations: it’s easily customizable and scalable. But it is also self-owned and self-hosted. That means you need to download its code and deploy it to a hosting provider of your choice. You need to host it yourself. Here’s a rundown of the most common PaaS and IaaS hosting options: Heroku or AWS.