StayCircles
StayCircles Inc.
Encircle
Polarsteps - Travel Tracker
Polarsteps
TripIt: Travel Planner
TripIt, Inc.
Adventure Machine
Visit A City
Hostelworld: Hostel Travel App
Hostelworld.com
Dayuse: Hotel rooms by day
DAYUSE
Stellarium Mobile - スターマップ
Stellarium Labs