What are some alternatives to Shopify? Are there any free e-commerce site building or hosting apps like Shopify?

Some popular Shopify alternatives are BigCommerce, Squarespace, and Wix. There are also a number of free e-commerce site building or hosting apps like Shopify, but they vary in terms of features and functionality.
Some other popular Shopify alternatives include BigCommerce, Squarespace, and Wix. These platforms offer a range of features and functionality, and some are free to use.

CRO & UX are a big field, it can be difficult to know where to start 🤔

Most of the guides out there are either too long, too short, or generalize things so much that they do not help you at all.