Plan tier and limits
Storage, pages, products, staff accounts and bandwidth change by plan. Check the limit you will actually hit, not the headline monthly price.
Transaction fees
A cheap plan can carry a higher transaction fee. Add the fee on your expected sales to the subscription cost.
Domain and apps
Domain registration, email, premium apps and templates may be separate. A free template can become a paid add-on when you need support.
Migration and export
Check whether you can export your content and whether the platform supports the payment and shipping providers you need.
Renewal price
Introductory pricing often renews at a higher rate. Compare the renewal price and the cancellation terms before committing.