Instead of having to send emails and phone messages, trying to convince people to let you know whether they're available or not, Rabbl does it all for you, leaving more time to do something useful.
Each event can be set up differently with a variety of settings available, including start time, the venue and the maximum number of attendees as well as many others.
Events can be confined to the members of your Rabbl or advertised to the public, in order to allow more participation.