Trip-planning apps are a dime a dozen. So what sets Jetsetter apart? For starters, it's one of the most beautifully designed travel apps around, packed with gorgeous panoramic photos and 360-degree room tours. Targeted at affluent travelers seeking a luxurious escape in exotic locations, Jetsetter displays scrollable pictorials of boutique hotels, vacation homes, and tour packages. The app's daily "flash sales" offer travel deals at significant discounts too.