AutomatorWP BuddyBoss GPL Overview:
BuddyBoss is the #1 open-source platform focused on selling memberships, courses, and building online communities, giving you the flexibility, control, and freedom you need, to create a successful online platform. The BuddyBoss team has created 2 fantastic solutions for online platforms:
1) A full-featured plugin with tons of community-based features.
2) A beautiful theme to improve the design of its platform and with support with a great number of plugins.