What is "Pages limit"?
On the Free plan, you can create up to 3 standard pages like Landing, About us, Faq and Contact pages...
The limit of Basic plan is 10 pages, Pro is 50 pages and Premium is unlimited. But with Basic, Pro and Premium plans you can create all of the page types: Standard, Product, Collection, Blog and Article :)
For example, with the Basic plan, you have 10 pages/templates. You can create one product template and make it as default layout for all products. It will still count as one page.