Yes. Free Beginner plan is, as it says in the description, a free plan that doesn't need to be bought and will forever be free.
We provide service for all business sizes.
You can see those features if you navigate to the individual site of the plan.
You can use a Paid Template for only one person/business/project. If you want to use the purchased template for a different client or project, then you'll have to buy another license (by buying the template again). You can customize the template to any degree (adding, altering, or removing text, images, graphics, layout, design, etc.) to fit your project's needs.