Campus Bubble - Private online communities for college and universities
MemberPrism - open source alternative to memberstack / memberspace , but with both front and backend member-only content protection - easychen/MemberPrism2
Crowdstack Pro - Engage, retain, and grow your community
Fanfix - Exclusive, behind the scenes content from creators
Facebook Groups - This app gives you a dedicated space for you and your groups
Crowdstack Pro Community - Create a virtual community in minutes