1. Roadtrippers is a must-have for anyone planning a road trip in the US. You enter where you want to go, make selections depending on what you want to see – natural wonders, weird stuff– and the app will create a customized map for you.
Find other cool places to stop on your journey using AroundMe, iExit, and Field Trip.
2. Hotel Tonight: Get last-minute discounts on top-rated hotels using Hotel Tonight. You can only book a week in advance, so it is not the best option for a long-planned family vacation but for a fun, spur-of-the-moment getaway, perfect.
Another similar app to try: Roomila.
3. Hopper: You will get your lowest airfares ever thanks to Hopper’s finely tuned price-prediction feature. First, it figures out the best time for you to fly, then, it figures out the best time for you to buy tickets for that flight.
4. Travel Math: If your brain is frazzled at the mere idea of organizing a trip, let Travel Math do all the calculations for you: it will measure distances, travel times, budgets—whatever you need to know.
5. Ship Mate: This is the number one app when it comes to vacations taken on a ship. You can take a look at deck plans, read reviews of the different ports you will be stopping at, chat with other people who will be on your ship, and more.
6. CityMaps2Go: If you are traveling outside your country and have to depend on Wi-Fi for internet, it is smart to download all the maps you will need, in advance, at CityMaps2Go: they are stored offline, so you will avoid roaming charges.
Another great option: Maplets.
7. Pack Point: Pack Point helps you decide what to pack depending on where you are going, what the weather will be like, and what sort of activities you will be participating in. Another similar option: Travel List.
8. Tripit merges your flight, restaurant, hotel, and car rental confirmation emails into one “master itinerary” to keep you organized and where you need to be for your entire trip.
9. Roomer: Your daughter is throwing up everywhere and suddenly going on vacation is no longer an option: What do you do about your hotel room? Get rid of it using Roomer. List your room and wait to hear from someone who wants to take over your reservation — no more losing money on cancellation fees.
10. Jet Lag Rooster will tell you how to shift your sleeping schedule in the days before a trip so you would not be exhausted once you reach your destination.
11. Dude Where’s My Car?: The last thing you want to do, when you get back from a trip, is wander around the airport parking garage for 30 minutes, exasperatedly searching for your vehicle: 'Dude Where’s My Car?' keeps track of exactly where you parked and will guide you back to that spot. Plus, it also helps you find parking.
12. Loungebuddy: Did you know that you can use a ton of airport lounges, even if you are not a first class passenger? Sometimes it is worth paying a fee if it means getting to wait for your flight in a comfortable spot—Loungebuddy will let you know what your options are at the airport you are flying out of.
13. My TSA: Can you bring _____ through airport security? Open up My TSA and you will know in an instant. You can also use the app to look up how long the security wait times are at your airport so you will be sure to arrive early enough to make your flight.
For more help navigating an airport like a pro, take a look at GateGuru and Flight Aware.
14. Track My Tour: This app allows your loved ones to “join” you on a trip from the comfort of their homes: they “follow a breadcrumb trail of your tour by visiting the link you sent them,” while you document the most exciting spots you visit as you go—it is the easiest way to keep people in the loop.
15. Unlike: Put together your dream trip itinerary using the guides at Unlike, an app that “connects tastemakers and trendsetters around the globe with unique, essential and inspiring places.” Also check 12hrs, Spotted By Locals, and Trover.