What is An App?
App is short for application and is a very “hot” term at the moment. An application or app is just a piece of software. The term took off in relation to software applications made for specific purposes and specifically for mobile phones; the iPhone being the first. What made an app an app was that it was bought online or in a store or on a CD or DVD, but was listed along with many others in an “app store”. The scope of the term soon widen to tablets.
Google started to call their online office software suite “Google Apps” and that really broadened the term to include “web application”.