SmokeSignals makes group trip planning easy by combining everything you need in one app:

Itinerary Sharing

Shares the itinerary with everyone who RSVPed and allows colaboration 

Photo Pooling

Upload photos from the trip and share them in a trip album

Group Chat

Collaborate on planning and logistics in real time with a group chat that matches the RSVP list

RSVP Managment

Track who is invited, tentitive and going on the trip

Cost Splitting 

Upload expenses as you plan and travel and choose who you split them with