Max Mega Menu is one the best mega menu for WordPress which allows you to easily create menus, tabs and other elements in your menus.
The plugin is really easy to use and makes it unnecessary to work with the PHP or CSS code and it has an extensive documentation.
Max Mega Menu is a freemium plugin, this means that there is a free version and a premium paid version. The PRO version, add some important features like the sticky menu, vertical menu and some elements for WooCommerce like the shopping cart.
The free version of Max Mega Menu is very limited and you probably will have to purchase the premium version if you want to get some basic functions like the sticky menu.
The price of Max Mega Menu PRO is quite expensive and the most economical license cost 23 USD for a single site.
Download Max Mega Menu
If you want to give it a try before purchasing the premium version of Max Mega Menu PRO, here you can download a nulled version for testing purposes.