1. CityMapper

This is the ultimate travel app, great if you live in London or New York. It’s made me healthier, greener – and richer – since I started to use it because I walk so much more.

It shows you how to get from A to B by any route, gives real-time information about anything and everything transport-connected – the progress of your nearest bus, where the nearest cycle docks are and how many bikes are left there, tube delays, the weather, the disruptions and more. It even tells you how much the different routes will cost, how long it takes to walk to every tube line, and how many calories you will burn if you walk or cycle.

2. Kayak

This is the best travel search site that I’ve found and I use it all the time for cheap fares, care hire and hotel bookings. As well as bookings, you can also use it to track your flights, look up baggage fees and find out the phone numbers of all the airlines.

I’ve got the Pro version which even has maps of the terminals at 100 airports.

3. Tripit

This is great if like me you travel a lot on business as it creates an itinerary for you, so all your travel plans are in one place.

You don’t even have to email your travel details to it – it will even scan your inbox and import all your confirmations automatically (hotels, flights, car hire), create an itinerary and sync your calendars.

You can add maps, travel directions and even share your details with colleagues and friends.

And it keeps a record of your travel history – so not only can you keep track of every hotel and flight you’ve done, but it makes it easy to do your expenses

4. Passbook

This app, which comes as standard on iPhones and iPads, is the simplest way to keep all your passes in each place – it saves airline boarding passes, tickets coupons, cinema tickets and all sorts of other passes into one place.

You can add passes through, emails and websites, and then when you’re need them, open the app and the bar code on the pass is scanned so you’ve checked in for a flight, earned loyalty points or redeemed a coupon.

5. iMetrO

This gives you the metro map of more than 400 cities. You can download the maps so they work offline and check the quickest route between two places.

I travel every month to Moscow to train the team at my company Retail Profile, and the app is absolutely brilliant for allowing me to find my way around.

6. Gateguru and Seatguru

Both of these travel apps are brilliant if you spend half your life either in an airport or on a plane, as I do.

GateGuru: This is a one-stop-shop for everything you need about airport facilities – from flight information to how long it will take you to get through security to maps and food, shopping, car hire, beauty treatments and whatever else you need. It even gives you the latest weather report

You can personalise it to your own itinerary and helps you track your own travels – how far your flown, how many airports you’ve visited and your ranking with other GateGuru high flyers.

SeatGuru: This is essential if like me, you’re six foot tall and need good leg room. It covers every airline and every plane and all you have to do is enter your flight number or the type of plane and it shows a map of the seating and tells you where the best – and worst – seats are, and compares planes and airlines.

It also allows you to search for low fares, gives you flight status alerts and you can even send in your own seat reviews and photos.

7. Hailo

Wherever you are, Hailo will track down your nearest taxi, and with two taps, it comes and picks you up. You can either pay by card or cash and you are emailed a receipt. Simple.

It works in London, Dublin, Washington, New York and nine other cities.

8. Leo and Google Translate

Both these are really useful – all you do is enter the word you want to translate and bingo, it tells you what it means.

Leo works in French, Spanish, German, Italian, Russian, Chinese, and Google Translate has 64 languages – with speech recognition on some, so all you need to do is speak a word or phrase and it will translate it for you

And as a bonus, ninth recommendation, every single airline app. These are great – you can book, use them as a boarding pass and get all the latest flight info. I fly a lot with British Airways, Lufthansa, United and Swiss and I use them all.

So – what are your favourite travel apps?