Hi this is Michael, I'm one of the creators of Flo.  We gave it that name because our vision is to create a kind of 'workflow for the rest of us' - an app that makes everything easier without being complicated and geeky.  A challenge, I know. 

What separates Flo from other 'all-in-one' apps like Outlook is mostly behind the scenes.  For example, Flo features a system of linking items to each other: Swipe an email to create a new event or  to do, and Flo creates a link back to that email. That eliminates more than half of the hunting and pecking that drives me crazy.