All our WordPress themes are licensed under GNU General Public License: http://www.gnu.org/licenses/gpl-3.0.html
You can visit this FAQ page to understand more about the license: https://www.gnu.org/licenses/gpl-faq.html
We also have pro version with extra features. Pro Extended to use any particular theme for unlimited websites or Pro Single for one website.
Use this version to use our theme for one website.
Use this version to use our theme for unlimited websites.