Oh Appy Day! gives you the scoop on the coolest apps from some of the coolest people anywhere. This week, we’re happy to welcome Kristin Davis who’s sharing a favorite.

My daughter isn’t old enough for screen time and I haven’t started letting her play with my iPhone too much. But there’s one exception: when we’re flying. I think that constitutes an emergency, right? She is just captivated by all the other baby’s faces and their expressions in the Baby Play Face App, and it definitely keeps her focused on takeoff. Which is really important, because Gemma is the kind of kid who just wants to wave to every single person on the plane! – Kristin Davis

Find the the Baby Play Face App free for iPad or iPhone in the app store

Kristin Davis is best known for her work on Melrose Place and of course, for her Emmy-nominated role as Charlotte on Sex and the City. She’s now a devoted new mom, and she’s extremely committed to work with orphan elephants through the David Sheldrick Wildlife Trust and to Oxfam International. You can catch her on Broadway in Gore Vidal’s The Best Man through Sept 9.