Technically, bbBolt is a PHP library for WordPress plugin and theme developers.
But at its heart, bbBolt is a solution to the overwhelming support that comes with releasing WordPress Plugins and Themes for free.
bbBolt offer a library that developers can ship with their free plugin or theme to provide premium and convenient support for their users. bbBolt manages subscriptions through PayPal and introduces a client-server model to the bbPress plugin to offer support convenient for both developers and users.
To learn how to integrate bbBolt into your plugin, have a read of the documentation for plugin developers.
If you’ve found a bbBolt Support System in your WordPress dashboard, or just want to learn more about how bbBolt works for end-users, have a read of the end-user documentation.