Katie Couric‘s favorite app is Words With Friends, the social word game from Zynga that lets users connect with friends online.

The veteran television journalist told USA Today that she likes the app, “Because I love words, I love my friends, and I’m very competitive. And I can play it at 3 a.m. when I can’t sleep!”

Wondering what kinds of apps other media figures like? Check out our column, What’s Your Favorite App? in which we speak to tech and media professionals about which apps they can’t live without. We’ve spoken to executives from Disney Publishing, LinkedIn, Bottle Rocket Apps, and Zinio, as well as authors including Margaret Atwood and Jeff Corwin.

AN: What’s your favorite app, Jeff Corwin?

JC:  Google Earth, Hi Tide, and Nike Running. Google Earth, because I can find out where the heck I am this time. Besides, being able to send my wife a photo of my exact location, so that she can come and rescue me, is a bonus. Hi Tide, because we live on an island, and our lives are ruled by the tides. Really. Nike Running is pretty awesome too, since it tracks the pace and distance of my runs, and compares them to my earlier ones. So I know exactly how long it would take me to get out of the middle of nowhere to get home in time to beat the tide. Sense a pattern here?