Kayak Pro vs. TripIt
Travelers depend on iPhone apps to plan and organize their trips. You can check everything from flight status to hotel addresses. If you're a frequent flier, you might need more than one app. "TripIt Pro is super useful, if only for the airline alerts, but its feature for syncing all your frequent flier accounts is pretty lackluster," says CIO.com blogger James A. Martin. "I use Kayak Pro to start my searching and TripIt Pro when I'm actually traveling."