Today’s business traveler has plenty of essential tools, but none is more critical than the mobile phone. Once just a tool for communication, these devices began to morph into mobile offices over a dozen years ago with the introduction of the first Blackberry.

Today, with the app explosion, they’ve become even more important — and developers have created hundreds of applications to help road warriors become more efficient and better able to navigate unfamiliar towns. We’ve dug up 10 apps for iPhones and Androids that no business traveler should be without.

Read more at CNBC.com