Nomadago - Nomadago keeps frequent travelers connected and assists with planning through a social app for sharing travel plans, inviting friends, seeing locations, and getting notifications if your path’s cross.
Wanderlog - Collaborative travel planner with combined itinerary and map
Airbnb - Book unique places to stay and things to do.
Sygic Travel Maps - Itinerary planner for independent travelers
iBucket - A social bucket list apps that helps you achieve your goals & trips. Available for iOS, Android and Web. Dream it. Plan it. Do it.
Sygic Maps - The world's first online maps designed for travelers