The best app for helping you save money on flights is about to do the same thing for hotels

For the past two years, Hopper has been working to perfect the art of predicting the best time to book a flight.

I use Hopper frequently, and it's helped me decide when to book every flight I've taken over the past year. And since you can start tracking trips up to a year in advance, it's the perfect app for long-term planning.

Now, Hopper is bringing that prediction technology to another area of travel: hotels.

Starting Wednesday, you'll now be able to book hotels through the app in the same way you book flights - you let Hopper know when and where you'd like to travel, and the app watches prices and advises the best time to book. Hopper says it can accurately predict the best time to book 95% of the time.

Here's how it works: