Switch between groups to see each group's events in its own feed.
Use smart location and time recs to save hours of organizing. Integrate with whatever calendar you already use.
You can send invites and get replies from friends even if they don't have the app. They just reply "YES" or "NO" by text or email.
See friends and plans on a live social map. Set "Bases" for each group, and get notifications when people arrive or leave.