Social Media Communicators, what’s your go-to app? The one you can’t live without? Check out what your peers have to say about their favorite iPhone apps for productivity, fun, and everything in between. Are yours on the list? By Jen KnoedlOct. 28, 2011 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.