Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Booking.com - Find your next stay. Search deals on hotels, homes, and much more...
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Sygic Travel Maps - Itinerary planner for independent travelers