Marco also notes that the app has to contend with the user's expectation of what it should do. Which might not have any basis in reality. If an app doesn't do w

Marco also notes that the app has to contend with the user's expectation of what it should do. Which might not have any basis in reality. If an app doesn't do what a user expects, regardless of where that expectation originates, it earns the 'useless' designation.