Making Pro Plugins – Learn to launch your WordPress plugin with a paid license fee

Learn everything I’ve picked up from selling pro plugins for the last two years, and from speaking one-on-one with countless plugin authors. Get over your fears and solidify your plugin idea.
By the end the premium plugin will be launched, for only the cost of hosting a WordPress site ($4/mo for the first 3 months with a discount)
Once you get some sales, make things easier for you and your pro customers with automatic updates and license keys.
Avoid most issues with hosting in the free WordPress.org plugin directory, and get a free version released as a way to drive quality traffic to your pro plugin site.
Streamline the process of maintaining and releasing new versions of your free and pro plugins
Go through and set up ways to funnel people to your plugin website and convert them into customers
Set up a proper support system for your plugin to keep you and your customers happy
Source: https://managewp.org/articles/14377/making-pro-plugins-learn-to-launch-your-wordpress-plugin-with-a-paid-license-fee

source https://williechiu40.wordpress.com/2017/02/12/making-pro-plugins-learn-to-launch-your-wordpress-plugin-with-a-paid-license-fee/