Trip Advisor (iOS, Android, Windows Phone/Free)
Trip Advisor is the best travel website in the world. Its official app gathers all the data from the website and displays it in a beautifully designed app. Using over 75 million user reviews you can choose and book the best of hotels, restaurants and airfare anywhere in the world. You can explore restaurants by type, price range and rating, best hotels anywhere, including Traveler’s Choice award winners, and interesting things to do in any destination that you are headed to. Using the Near Me Now feature, you can discover great things to do near your location, or near any address you want. You can even add your own reviews and photos using the app.
Airbnb (iOS, Android/Free)
Airbnb livens up your travelling experience by letting you rent most unusual and very personal living spaces for you to enjoy your vacation in. From a private island in Fiji that goes for $400 a night, to a converted windmill in Worcestershire to staying with a lovely family in Cameron, anything is possible using Airbnb. This community marketplace lets you find space in a few clicks, gives you an option to find space at the shortest notice wherever you are in the world, and lets you see the place you are renting through its photo collection. Once booked you get directions to your accommodation, and can even message your hosts directly from your phone. And if you like the concept, you can start renting out your own space too.
KAYAK (iOS, Android, Windows Phone, Kindle Fire/Free)
Kayak is the Google of travel search. Using it you can search for flights, hotels, rental cars, compare deals on them and book them right from the app. Once done, you can use the app to keep track of your itinerary using the My Trips feature, track your flight status, look up baggage fees and access airline numbers and airport info. If you are ready to throw Rs 55 at the app, you can get rid of the advertisements and get access to airport terminal maps for over 100 airports around the world.
City Maps 2 Go (iOS, Android/Rs 110)
When you are out and about outside of your city and outside your country, using navigation and map apps like Google maps and Apple maps to get around is great, but could be a terrible drain on your data allowance and consequently on your purse. Avoid these charges by using City Maps 2 Go. With the app you get 6,700 interactive offline maps for all parts of the world that can be used without Internet. You can search the maps for addresses even when you are offline. If you got data you can use GPS to find points of interest along with corresponding Wikipedia travel guides.