As a small business owner, asking “why should I create an app?” is a lot like asking “do I really need a website?” was a few years ago. Sure, it was (and still is) possible to do much of what you need using a Facebook page, but they’re just not built to do what a website can.
While a Facebook page can, for example, show opening times, it’s not so easy to offer a detailed breakdown of lunch, dinner and a la carte menus. In that respect, Facebook pages are to websites as mobile websites/responsive sites are to mobile apps; they get the job done, just about, but you generally can’t use them to do EVERYTHING that you’d like to.
This post will cover a few of the advantages of creating your own app as opposed to using a responsive site or, even worse, not doing anything with mobile at all.