Millennials are more likely to increase vacation spending this year than any other age group, and they're willing to spend $5,000 and up on vacations — but there are smart ways to avoid high costs. Dozens of travel apps are known to help save money while traveling, and these new (and one improved) apps can offer hundreds of dollars in savings.

Bellhop's ride-share aggregator

Bellhop

People who flip through rideshare apps like Uber and Lyft to grab the cheapest fare now have a more convenient way to compare. Bellhop, which came out of beta in July, is a ride-share aggregator that gives consumers access to multiple ride-share companies in one easy-to-use app. Once you enter your location and destination as you would do in any rideshare app, it shows you all the available, real-time prices for ride-hailing options, like Uber, Lyft, Curb and Arro, so you can see which platform has the cheapest rates. You can also choose by the quickest pick-up and other filters. Once you pick your preferred rideshare, Bellhop will direct you to their app with all the pick-up and drop-off information already filled in (Lyft is the only rideshare service where you can book directly through Bellhop). By using the price comparison, customers can save up to $126 a year according to Bellhop (based on 42 trips in a rideshare annually at an average of $15 per trip). The app works across the U.S. It also works internationally, which comes in handy when traveling abroad. Many people don't know all the available and popular rideshare apps in foreign countries, like Le Taxi in Paris.

Timeshifter's jetlag cure

Timeshifter

There are many apps that help you with jetlag but Timeshifter is the first jetlag app designed and tailored specifically to the user, showing you when to avoid/seek daylight, take in caffeine, nap and sleep during travel to other time zones. Timeshifter is developed by awarding-winning scientists, including Dr. Steven Lockley of Harvard University (who has studied sleep/wake cycles for 20 years) and Dr. Smith Johnston, NASA's medical director and performance specialist. Unlike other jetlag apps, Timeshifter is custom tailored to the user's circadian rhythm, the body's 24-hour internal clock. Users input sleep details (when you normally sleep, wake up, etc.), flight details (down to how many stops, exact airports, layover cities, etc.), and their chronotype (whether you're an early bird or night owl, since this affects sleep and alertness patterns and everyone has slightly different circadian rhythms). Once you travel, you can get advice delivered as notifications during your transition to the new time zone and until you return home. It also offers a detailed graph of what to do and not to do from the morning you depart, and suggestions on how to get a good night's sleep (eye masks, warm bath, for example), as well as what time you should see bright light (light, such as the sun, has the most powerful influence on circadian rhythms, and see light at the right time is an important factor), all within reasonable times in your new time zone. Timeshifter costs $9.99 per jet lag plan (both one way or round-trip), or $24.00 for an annual subscription.

HotelTonight's new Daily Drop

Courtesy of HotelTonight