Membership vs Supporter

Hi WPMUDEV fans!

The question is this: what's the difference between Membership and Supporter? When Supporter becomes multilevel (in the soon to be released 3.0), for me, it's even harder to differentiate both plugins...

I've read the excelent https://premium.wpmudev.org/forums/topic/supporterpaytoblogmembership-plugins-for-a-buddypress-site post but I'm still a little bit confused...

Can you help me?

Thank you!