Begin with what you sell and how often. A single product, a donation button, a course, a membership and a growing physical catalog each point to a different setup, and the guide to selling one product from a small site is the shortest path if you are not sure yet.

Once you know the shape of the shop, read the comparison for your two finalists and then the real-cost guide for the platform you lean toward. Count every layer: the plan, card processing, any platform transaction fee and the apps you would add to fill gaps.

Before launch, use the setup and checklist guides to test payments, delivery and refunds with a real order. A trial period is the time to confirm the store works end to end, not just that it looks finished.