OpenTavern is a self hosted meetup group organizer.
It allows you to create local communities around shared interest groups.
- Allow creating events
- Organizers and attendees
- Users can RSVP, edit change rsvp
- Events calendar
- Social login
- Attendees can leave comments on events
- Can charge for events (Or keep it free)
http://opentavern.herokuapp.com/
You can deploy this app straight to heroku with this button. Only free postgres addon is used, so no charges will incur.