It's just like taking a bus, so how will an app help?

Well, when the world isn't perfect, an app that readily answers questions such as "how long is the plane going to be delayed for?" or "when will they send us the baby carriage? We are tired of holding him." or "does that guy have a license for that submachine gun he's holding?" is appreciated.

And you can get those answers without getting up from your coffee table or calling the authorities.