Stellarium - Stellarium is a free open source planetarium for your computer.
TourRadar - Book Tours & Travel Packages. TourRadar is the world's most trusted online marketplace for multi-day tours. Compare, read reviews, meet guides & travelers, book with confidence.
KStars - KStars is a Desktop Planetarium for KDE.
mTrip - mTrip is a custom mobile application that allows many benefits to tour operators, travel agencies, TMC, OTA, cruises, and different MICE agencies.
Sky Map - Sky Map (formerly the Google Sky Map) turns your Android-powered mobile phone into a window on the...
TBird app - Name your own price on travel