Frequent travelers need to download Hipmunk. The service operates much like Expedia or Travelocity, letting you book flights and hotels quickly and easily and for the best possible price. But while competitors focus on price alone, Hipmunk created an "agony factor," which accounts for number of layovers and flight duration to give you the best possible options. Best of all, the tablet-optimized Android application has a clean and colorful UI and presents information in an intuitive way.
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