WooVina theme and all our child themes are FREE, you can download and use them without pay. However, to use premium plugins and remove "Powered by" link in the footer you must buy a license. For WooVina you need buy Priority Support and for Child Themes you need buy plan for each theme you want to use. To activate your license, please follow this instructions:
I. Choose your plan and get started
II. Get your License Key
III. Activate The License
Please Notes: Only activate license on your live website. You don't need activate license in localhost or development site.