Want the best seats in the house? SeatGuru shows you the optimal places to sit for each aircraft type. Just plug in your flight details and it spits out a colour-coded map that specifies where the good seats and bad seats are, as well as where to find the toilets and emergency exits.
TripIt takes all your flight, hotel, rental car and tour booking confirmation emails and compiles them into one easy-to-follow itinerary, complete with all the relevant dates, times, flight numbers and addresses. If you set it up with your email account details, it even extracts all those bookings for you automatically. TripCase does a similar job.
TripAdvisor is invaluable for planning a holiday. If you're looking for good places to stay, eat and see in any destination, it goes one better than a search engine by including user reviews and ratings on each establishment that are written by other travellers. There's also a ''Near Me Now'' feature that uses your smartphone's GPS to display the closest attractions.
Kayak is something of a one-stop shop for travellers, letting you book flights and hotels, organise your itinerary, track your flight, browse through tours and attractions, pack your suitcase and even convert currencies. Unfortunately, it suffers from the ''jack of all trades, master of none'' curse - other apps perform each of these tasks better.
No matter how well you plan ahead, there's always one or two essentials you forget to bring on holiday. Packing Pro ensures you don't leave anything behind, with lots of sample packing lists and an ''Expert List Assistant'' that uses variables such as the number, age and gender of people travelling to automatically compile a packing list.