Hi there! Thanks for checking us out–thrilled that you’re considering making the switch to our products! 🙂
Great question! Our product licenses are billed individually so customers can purchase just the specific plugins they require for a particular project. Thus, if you should purchase an Events Calendar PRO license and wish to extend it with Filter Bar, you’ll need to obtain an additional license for Filter Bar. This ensures that a) customers who have very specific needs won’t be burdened by bloated plugins with unnecessary features and b) we’re able to provide more targeted support that addresses each customer’s individual setup.
If you’re looking to pick up multiple plugins at a reduced cost, you might want to look into our product bundles to see if any of them might be a good fit for your project! We’re also running a sale for this weekend only to celebrate 1,000 five-star reviews on WordPress.org, which you can read more about on our blog.
I hope that helps to address your concerns! Thanks, and let us know if there’s anything else we can do to help!