There are plenty of travel apps for researching flights and hotels or generally organizing your trips, but indie German developer Hans Knöechel struggled to find one that could gather all his travel-related information in one place, in addition to allowing a group of friends to collaborate on the trip-planning process.

Like TripIt and others, travel documents can be shared with Lambus by forwarding emails to a unique personal email address. The imported documents - like plane tickets or Airbnb stays - will then be made available to all group attendees automatically.