Most sellers allow you to pre-purchase demo their templates. This is a very popular JetTemplate feature among sellers and customers. This allows you to test both the JetTemplate application and the template of the seller to see if it is the right fit for you before you buy.
How to demo a template
If the seller allows their templates to be demonstrated, you will usually find a demo link in the description of the product or list. Click or copy and paste the link in your browser and you will be taken to the design area of JetTemplate where you can play with the demo.
There is limited demo area. Obviously you can't save a template. Before you get access to the full featured demo area where you can save your templates, you will need to buy the template.