Can the add-ons be used separately without the core plugin?

Wishlist Smart Shortcodes includes the core plugin + 3 add-ons. The core plugin is a must have, so in order to activate any of the add-ons you need to also get Wishlist Smart Shortcodes Core. All you need to do is copy the license issued to you after the purchase and insert it in the right place inside the core plugin > Add-Ons tab.